15504412416 has 144 divisors (see below), whose sum is σ = 42767413248. Its totient is φ = 4981248000.

The previous prime is 15504412411. The next prime is 15504412481. The reversal of 15504412416 is 61421440551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15504412411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6593641 + ... + 6595991.

Almost surely, 2^15504412416 is an apocalyptic number.

15504412416 is a gapful number since it is divisible by the number (16) 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 15504412416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21383706624).

15504412416 is an abundant number, since it is smaller than the sum of its proper divisors (27263000832).

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

15504412416 is a wasteful number, since it uses less digits than its factorization.

15504412416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2678 (or 2664 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 33.

Adding to 15504412416 its reverse (61421440551), we get a palindrome (76925852967).

The spelling of 15504412416 in words is "fifteen billion, five hundred four million, four hundred twelve thousand, four hundred sixteen".