131435664044 has 24 divisors (see below), whose sum is σ = 232324485120. Its totient is φ = 65058099536.

The previous prime is 131435663987. The next prime is 131435664049. The reversal of 131435664044 is 440466534131.

It is a junction number, because it is equal to n+sod(n) for n = 131435663992 and 131435664010.

It is not an unprimeable number, because it can be changed into a prime (131435664049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 509189 + ... + 722595.

It is an arithmetic number, because the mean of its divisors is an integer number (9680186880).

Almost surely, 2^131435664044 is an apocalyptic number.

It is an amenable number.

131435664044 is a deficient number, since it is larger than the sum of its proper divisors (100888821076).

131435664044 is a wasteful number, since it uses less digits than its factorization.

131435664044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214957 (or 214955 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 41.

The spelling of 131435664044 in words is "one hundred thirty-one billion, four hundred thirty-five million, six hundred sixty-four thousand, forty-four".