15550974912 has 336 divisors, whose sum is σ = 48543667200. Its totient is φ = 4352409600.

The previous prime is 15550974899. The next prime is 15550974919. The reversal of 15550974912 is 21947905551.

15550974912 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15550974919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 34634464 + ... + 34634912.

It is an arithmetic number, because the mean of its divisors is an integer number (144475200).

Almost surely, 2^15550974912 is an apocalyptic number.

15550974912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15550974912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24271833600).

15550974912 is an abundant number, since it is smaller than the sum of its proper divisors (32992692288).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15550974912 is a wasteful number, since it uses less digits than its factorization.

15550974912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552 (or 519 counting only the distinct ones).

The product of its (nonzero) digits is 567000, while the sum is 48.

The spelling of 15550974912 in words is "fifteen billion, five hundred fifty million, nine hundred seventy-four thousand, nine hundred twelve".