164662168515 has 32 divisors (see below), whose sum is σ = 284543352576. Its totient is φ = 80830803840.

The previous prime is 164662168493. The next prime is 164662168529. The reversal of 164662168515 is 515861266461.

It is not a de Polignac number, because 164662168515 - 2²⁰ = 164661119939 is a prime.

It is a super-2 number, since 2×164662168515² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1149081 + ... + 1284410.

It is an arithmetic number, because the mean of its divisors is an integer number (8891979768).

Almost surely, 2^164662168515 is an apocalyptic number.

164662168515 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

164662168515 is a deficient number, since it is larger than the sum of its proper divisors (119881184061).

164662168515 is a wasteful number, since it uses less digits than its factorization.

164662168515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2433859.

The product of its digits is 2073600, while the sum is 51.

The spelling of 164662168515 in words is "one hundred sixty-four billion, six hundred sixty-two million, one hundred sixty-eight thousand, five hundred fifteen".