132736636691 has 4 divisors (see below), whose sum is σ = 138507794832. Its totient is φ = 126965478552.

The previous prime is 132736636651. The next prime is 132736636693. The reversal of 132736636691 is 196636637231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 196636637231 = 139487 ⋅1409713.

It is a cyclic number.

It is not a de Polignac number, because 132736636691 - 2²² = 132732442387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (132736636693) 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, 2885579036 + ... + 2885579081.

It is an arithmetic number, because the mean of its divisors is an integer number (34626948708).

Almost surely, 2^132736636691 is an apocalyptic number.

132736636691 is a deficient number, since it is larger than the sum of its proper divisors (5771158141).

132736636691 is an equidigital number, since it uses as much as digits as its factorization.

132736636691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5771158140.

The product of its digits is 4408992, while the sum is 53.

The spelling of 132736636691 in words is "one hundred thirty-two billion, seven hundred thirty-six million, six hundred thirty-six thousand, six hundred ninety-one".