131689831665602 has 32 divisors (see below), whose sum is σ = 229125882252288. Its totient is φ = 55595545820496.

The previous prime is 131689831665593. The next prime is 131689831665629. The reversal of 131689831665602 is 206566138986131.

It is a super-2 number, since 2×131689831665602² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94540913 + ... + 95923739.

It is an arithmetic number, because the mean of its divisors is an integer number (7160183820384).

Almost surely, 2^{131689831665602} is an apocalyptic number.

131689831665602 is a deficient number, since it is larger than the sum of its proper divisors (97436050586686).

131689831665602 is a wasteful number, since it uses less digits than its factorization.

131689831665602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1484430.

The product of its (nonzero) digits is 67184640, while the sum is 65.

The spelling of 131689831665602 in words is "one hundred thirty-one trillion, six hundred eighty-nine billion, eight hundred thirty-one million, six hundred sixty-five thousand, six hundred two".