102621617022165 has 16 divisors (see below), whose sum is σ = 164199345534528. Its totient is φ = 54729942978816.

The previous prime is 102621617022151. The next prime is 102621617022263. The reversal of 102621617022165 is 561220716126201.

It is not a de Polignac number, because 102621617022165 - 2⁸ = 102621617021909 is a prime.

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, 98596279 + ... + 99631668.

It is an arithmetic number, because the mean of its divisors is an integer number (10262459095908).

Almost surely, 2^{102621617022165} is an apocalyptic number.

102621617022165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

102621617022165 is a deficient number, since it is larger than the sum of its proper divisors (61577728512363).

102621617022165 is a wasteful number, since it uses less digits than its factorization.

102621617022165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198262468.

The product of its (nonzero) digits is 120960, while the sum is 42.

The spelling of 102621617022165 in words is "one hundred two trillion, six hundred twenty-one billion, six hundred seventeen million, twenty-two thousand, one hundred sixty-five".