665377848151 has 4 divisors (see below), whose sum is σ = 665701950472. Its totient is φ = 665053745832.

The previous prime is 665377848119. The next prime is 665377848181. The reversal of 665377848151 is 151848773566.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 665377848151 - 2⁵ = 665377848119 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 665377848151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (665377848101) 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, 162048081 + ... + 162052186.

It is an arithmetic number, because the mean of its divisors is an integer number (166425487618).

Almost surely, 2^665377848151 is an apocalyptic number.

665377848151 is a deficient number, since it is larger than the sum of its proper divisors (324102321).

665377848151 is a wasteful number, since it uses less digits than its factorization.

665377848151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324102320.

The product of its digits is 33868800, while the sum is 61.

The spelling of 665377848151 in words is "six hundred sixty-five billion, three hundred seventy-seven million, eight hundred forty-eight thousand, one hundred fifty-one".