131664663633 has 8 divisors (see below), whose sum is σ = 175568218848. Its totient is φ = 87768775424.

The previous prime is 131664663601. The next prime is 131664663659. The reversal of 131664663633 is 336366466131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 131664663633 - 2⁵ = 131664663601 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131664663673) 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, 1876560 + ... + 1945457.

It is an arithmetic number, because the mean of its divisors is an integer number (21946027356).

Almost surely, 2^131664663633 is an apocalyptic number.

It is an amenable number.

131664663633 is a deficient number, since it is larger than the sum of its proper divisors (43903555215).

131664663633 is a wasteful number, since it uses less digits than its factorization.

131664663633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3833503.

The product of its digits is 2519424, while the sum is 48.

The spelling of 131664663633 in words is "one hundred thirty-one billion, six hundred sixty-four million, six hundred sixty-three thousand, six hundred thirty-three".