165151660311015 has 64 divisors (see below), whose sum is σ = 302690577024000. Its totient is φ = 75323188813824.

The previous prime is 165151660311007. The next prime is 165151660311017. The reversal of 165151660311015 is 510113066151561.

It is not a de Polignac number, because 165151660311015 - 2³ = 165151660311007 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165151660311017) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 562717449 + ... + 563010861.

It is an arithmetic number, because the mean of its divisors is an integer number (4729540266000).

Almost surely, 2^{165151660311015} is an apocalyptic number.

165151660311015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

165151660311015 is a deficient number, since it is larger than the sum of its proper divisors (137538916712985).

165151660311015 is a wasteful number, since it uses less digits than its factorization.

165151660311015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305816.

The product of its (nonzero) digits is 81000, while the sum is 42.

The spelling of 165151660311015 in words is "one hundred sixty-five trillion, one hundred fifty-one billion, six hundred sixty million, three hundred eleven thousand, fifteen".