665515010150 has 24 divisors (see below), whose sum is σ = 1249426694520. Its totient is φ = 263718095360.

The previous prime is 665515010131. The next prime is 665515010161. The reversal of 665515010150 is 51010515566.

665515010150 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 665515010150.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 62192315 + ... + 62203014.

It is an arithmetic number, because the mean of its divisors is an integer number (52059445605).

Almost surely, 2^665515010150 is an apocalyptic number.

665515010150 is a deficient number, since it is larger than the sum of its proper divisors (583911684370).

665515010150 is a wasteful number, since it uses less digits than its factorization.

665515010150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124395448 (or 124395443 counting only the distinct ones).

The product of its (nonzero) digits is 22500, while the sum is 35.

The spelling of 665515010150 in words is "six hundred sixty-five billion, five hundred fifteen million, ten thousand, one hundred fifty".