132661653560521 has 16 divisors (see below), whose sum is σ = 145889439566400. Its totient is φ = 120144244248000.

The previous prime is 132661653560489. The next prime is 132661653560567. The reversal of 132661653560521 is 125065356166231.

It is a cyclic number.

It is not a de Polignac number, because 132661653560521 - 2⁵ = 132661653560489 is a prime.

It is a super-2 number, since 2×132661653560521² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (132661653569521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1191851535 + ... + 1191962836.

It is an arithmetic number, because the mean of its divisors is an integer number (9118089972900).

Almost surely, 2^{132661653560521} is an apocalyptic number.

It is an amenable number.

132661653560521 is a deficient number, since it is larger than the sum of its proper divisors (13227786005879).

132661653560521 is a wasteful number, since it uses less digits than its factorization.

132661653560521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2383814520.

The product of its (nonzero) digits is 5832000, while the sum is 52.

The spelling of 132661653560521 in words is "one hundred thirty-two trillion, six hundred sixty-one billion, six hundred fifty-three million, five hundred sixty thousand, five hundred twenty-one".