131516554056 has 32 divisors (see below), whose sum is σ = 329026488000. Its totient is φ = 43807504320.

The previous prime is 131516554031. The next prime is 131516554061. The reversal of 131516554056 is 650455615131.

It is a super-2 number, since 2×131516554056² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 131516553999 and 131516554017.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1924915 + ... + 1992066.

It is an arithmetic number, because the mean of its divisors is an integer number (10282077750).

Almost surely, 2^131516554056 is an apocalyptic number.

It is an amenable number.

131516554056 is an abundant number, since it is smaller than the sum of its proper divisors (197509933944).

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

131516554056 is a wasteful number, since it uses less digits than its factorization.

131516554056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3918389 (or 3918385 counting only the distinct ones).

The product of its (nonzero) digits is 270000, while the sum is 42.

The spelling of 131516554056 in words is "one hundred thirty-one billion, five hundred sixteen million, five hundred fifty-four thousand, fifty-six".