165015516115010 has 64 divisors (see below), whose sum is σ = 324555966996480. Its totient is φ = 59908406446080.

The previous prime is 165015516114983. The next prime is 165015516115091. The reversal of 165015516115010 is 10511615510561.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 167351594 + ... + 168334746.

It is an arithmetic number, because the mean of its divisors is an integer number (5071186984320).

Almost surely, 2^{165015516115010} is an apocalyptic number.

165015516115010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

165015516115010 is a deficient number, since it is larger than the sum of its proper divisors (159540450881470).

165015516115010 is a wasteful number, since it uses less digits than its factorization.

165015516115010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 985643.

The product of its (nonzero) digits is 22500, while the sum is 38.

The spelling of 165015516115010 in words is "one hundred sixty-five trillion, fifteen billion, five hundred sixteen million, one hundred fifteen thousand, ten".