132644665641 has 4 divisors (see below), whose sum is σ = 176859554192. Its totient is φ = 88429777092.

The previous prime is 132644665633. The next prime is 132644665649. The reversal of 132644665641 is 146566446231.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (132644665633) and next prime (132644665649).

It is not a de Polignac number, because 132644665641 - 2³ = 132644665633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (132644665649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22107444271 + ... + 22107444276.

It is an arithmetic number, because the mean of its divisors is an integer number (44214888548).

Almost surely, 2^132644665641 is an apocalyptic number.

It is an amenable number.

132644665641 is a deficient number, since it is larger than the sum of its proper divisors (44214888551).

132644665641 is an equidigital number, since it uses as much as digits as its factorization.

132644665641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44214888550.

The product of its digits is 2488320, while the sum is 48.

The spelling of 132644665641 in words is "one hundred thirty-two billion, six hundred forty-four million, six hundred sixty-five thousand, six hundred forty-one".