131655605477 has 32 divisors (see below), whose sum is σ = 154201791744. Its totient is φ = 111080448000.

The previous prime is 131655605447. The next prime is 131655605509. The reversal of 131655605477 is 774506556131.

It is not a de Polignac number, because 131655605477 - 2¹² = 131655601381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131655605437) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3851453 + ... + 3885485.

It is an arithmetic number, because the mean of its divisors is an integer number (4818805992).

Almost surely, 2^131655605477 is an apocalyptic number.

131655605477 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

131655605477 is a deficient number, since it is larger than the sum of its proper divisors (22546186267).

131655605477 is a wasteful number, since it uses less digits than its factorization.

131655605477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34349.

The product of its (nonzero) digits is 2646000, while the sum is 50.

It can be divided in two parts, 1316556054 and 77, that added together give a palindrome (1316556131).

The spelling of 131655605477 in words is "one hundred thirty-one billion, six hundred fifty-five million, six hundred five thousand, four hundred seventy-seven".