131507664305 has 64 divisors (see below), whose sum is σ = 173980224000. Its totient is φ = 95099676672.

The previous prime is 131507664293. The next prime is 131507664313. The reversal of 131507664305 is 503466705131.

It is a cyclic number.

It is not a de Polignac number, because 131507664305 - 2⁶ = 131507664241 is a prime.

It is a super-2 number, since 2×131507664305² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 116480981 + ... + 116482109.

It is an arithmetic number, because the mean of its divisors is an integer number (2718441000).

Almost surely, 2^131507664305 is an apocalyptic number.

It is an amenable number.

131507664305 is a deficient number, since it is larger than the sum of its proper divisors (42472559695).

131507664305 is a wasteful number, since it uses less digits than its factorization.

131507664305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1898.

The product of its (nonzero) digits is 226800, while the sum is 41.

The spelling of 131507664305 in words is "one hundred thirty-one billion, five hundred seven million, six hundred sixty-four thousand, three hundred five".