65651396133 has 4 divisors (see below), whose sum is σ = 87535194848. Its totient is φ = 43767597420.

The previous prime is 65651396131. The next prime is 65651396177. The reversal of 65651396133 is 33169315656.

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 not a de Polignac number, because 65651396133 - 2¹ = 65651396131 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65651396131) 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, 10941899353 + ... + 10941899358.

It is an arithmetic number, because the mean of its divisors is an integer number (21883798712).

Almost surely, 2^65651396133 is an apocalyptic number.

It is an amenable number.

65651396133 is a deficient number, since it is larger than the sum of its proper divisors (21883798715).

65651396133 is a wasteful number, since it uses less digits than its factorization.

65651396133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21883798714.

The product of its digits is 1312200, while the sum is 48.

The spelling of 65651396133 in words is "sixty-five billion, six hundred fifty-one million, three hundred ninety-six thousand, one hundred thirty-three".