16155015552 has 240 divisors, whose sum is σ = 50464152180. Its totient is φ = 4960650240.

The previous prime is 16155015551. The next prime is 16155015553. The reversal of 16155015552 is 25551055161.

16155015552 is a `hidden beast` number, since 1 + 6 + 1 + 550 + 1 + 55 + 52 = 666.

16155015552 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (16155015551) and next prime (16155015553).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16155015551) 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 29 ways as a sum of consecutive naturals, for example, 32902027 + ... + 32902517.

Almost surely, 2^16155015552 is an apocalyptic number.

16155015552 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 16155015552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25232076090).

16155015552 is an abundant number, since it is smaller than the sum of its proper divisors (34309136628).

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

16155015552 is an frugal number, since it uses more digits than its factorization.

16155015552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 563 (or 509 counting only the distinct ones).

The product of its (nonzero) digits is 37500, while the sum is 36.

The spelling of 16155015552 in words is "sixteen billion, one hundred fifty-five million, fifteen thousand, five hundred fifty-two".