16156331532 has 72 divisors (see below), whose sum is σ = 45392976720. Its totient is φ = 4803477120.

The previous prime is 16156331501. The next prime is 16156331537. The reversal of 16156331532 is 23513365161.

16156331532 is a `hidden beast` number, since 1 + 6 + 1 + 5 + 633 + 15 + 3 + 2 = 666.

16156331532 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×16156331532² (a number of 21 digits) contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (16156331537) 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 23 ways as a sum of consecutive naturals, for example, 363907 + ... + 405882.

It is an arithmetic number, because the mean of its divisors is an integer number (630458010).

Almost surely, 2^16156331532 is an apocalyptic number.

16156331532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16156331532 is an abundant number, since it is smaller than the sum of its proper divisors (29236645188).

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

16156331532 is a wasteful number, since it uses less digits than its factorization.

16156331532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 769863 (or 769858 counting only the distinct ones).

The product of its digits is 48600, while the sum is 36.

Adding to 16156331532 its reverse (23513365161), we get a palindrome (39669696693).

The spelling of 16156331532 in words is "sixteen billion, one hundred fifty-six million, three hundred thirty-one thousand, five hundred thirty-two".