18157096976 has 20 divisors (see below), whose sum is σ = 37248750972. Its totient is φ = 8544516096.

The previous prime is 18157096973. The next prime is 18157096981. The reversal of 18157096976 is 67969075181.

It can be written as a sum of positive squares in 2 ways, for example, as 15012130576 + 3144966400 = 122524^2 + 56080^2 .

It is not an unprimeable number, because it can be changed into a prime (18157096973) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33376745 + ... + 33377288.

Almost surely, 2^18157096976 is an apocalyptic number.

18157096976 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

18157096976 is an abundant number, since it is smaller than the sum of its proper divisors (19091653996).

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

18157096976 is a wasteful number, since it uses less digits than its factorization.

18157096976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66754058 (or 66754052 counting only the distinct ones).

The product of its (nonzero) digits is 5715360, while the sum is 59.

The spelling of 18157096976 in words is "eighteen billion, one hundred fifty-seven million, ninety-six thousand, nine hundred seventy-six".