131552556877917 has 144 divisors (see below), whose sum is σ = 239726018750400. Its totient is φ = 69051381396480.

The previous prime is 131552556877913. The next prime is 131552556877921. The reversal of 131552556877917 is 719778655255131.

131552556877917 is a `hidden beast` number, since 1 + 3 + 1 + 5 + 52 + 5 + 568 + 7 + 7 + 9 + 1 + 7 = 666.

It is an interprime number because it is at equal distance from previous prime (131552556877913) and next prime (131552556877921).

It is not a de Polignac number, because 131552556877917 - 2² = 131552556877913 is a prime.

It is a super-2 number, since 2×131552556877917² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131552556877913) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 60413067 + ... + 62552727.

It is an arithmetic number, because the mean of its divisors is an integer number (1664764019100).

Almost surely, 2^{131552556877917} is an apocalyptic number.

131552556877917 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

131552556877917 is a deficient number, since it is larger than the sum of its proper divisors (108173461872483).

131552556877917 is a wasteful number, since it uses less digits than its factorization.

131552556877917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2139896 (or 2139886 counting only the distinct ones).

The product of its digits is 555660000, while the sum is 72.

The spelling of 131552556877917 in words is "one hundred thirty-one trillion, five hundred fifty-two billion, five hundred fifty-six million, eight hundred seventy-seven thousand, nine hundred seventeen".