665152016158 has 32 divisors (see below), whose sum is σ = 1163957169600. Its totient is φ = 284960793600.

The previous prime is 665152016101. The next prime is 665152016167. The reversal of 665152016158 is 851610251566.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1712458 + ... + 2064658.

It is an arithmetic number, because the mean of its divisors is an integer number (36373661550).

Almost surely, 2^665152016158 is an apocalyptic number.

665152016158 is a deficient number, since it is larger than the sum of its proper divisors (498805153442).

665152016158 is a wasteful number, since it uses less digits than its factorization.

665152016158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354977 (or 354963 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 46.

The spelling of 665152016158 in words is "six hundred sixty-five billion, one hundred fifty-two million, sixteen thousand, one hundred fifty-eight".