131663540155 has 32 divisors (see below), whose sum is σ = 183325040640. Its totient is φ = 88905548160.

The previous prime is 131663540143. The next prime is 131663540213. The reversal of 131663540155 is 551045366131.

It is not a de Polignac number, because 131663540155 - 2⁷ = 131663540027 is a prime.

It is a super-2 number, since 2×131663540155² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8389606 + ... + 8405284.

It is an arithmetic number, because the mean of its divisors is an integer number (5728907520).

Almost surely, 2^131663540155 is an apocalyptic number.

131663540155 is a deficient number, since it is larger than the sum of its proper divisors (51661500485).

131663540155 is a wasteful number, since it uses less digits than its factorization.

131663540155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19339.

The product of its (nonzero) digits is 162000, while the sum is 40.

The spelling of 131663540155 in words is "one hundred thirty-one billion, six hundred sixty-three million, five hundred forty thousand, one hundred fifty-five".