16162968987 has 80 divisors (see below), whose sum is σ = 27105331968. Its totient is φ = 9514739520.

The previous prime is 16162968961. The next prime is 16162968989. The reversal of 16162968987 is 78986926161.

16162968987 is a `hidden beast` number, since 1 + 616 + 2 + 9 + 6 + 8 + 9 + 8 + 7 = 666.

It is not a de Polignac number, because 16162968987 - 2⁶ = 16162968923 is a prime.

It is a super-2 number, since 2×16162968987² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16162968989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 4862308 + ... + 4865630.

Almost surely, 2^16162968987 is an apocalyptic number.

16162968987 is a deficient number, since it is larger than the sum of its proper divisors (10942362981).

16162968987 is a wasteful number, since it uses less digits than its factorization.

16162968987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3502 (or 3493 counting only the distinct ones).

The product of its digits is 15676416, while the sum is 63.

The spelling of 16162968987 in words is "sixteen billion, one hundred sixty-two million, nine hundred sixty-eight thousand, nine hundred eighty-seven".