55662121701515 has 64 divisors (see below), whose sum is σ = 76686453043200. Its totient is φ = 37993911653376.

The previous prime is 55662121701479. The next prime is 55662121701551. The reversal of 55662121701515 is 51510712126655.

It is an interprime number because it is at equal distance from previous prime (55662121701479) and next prime (55662121701551).

It is not a de Polignac number, because 55662121701515 - 2¹⁸ = 55662121439371 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55662121701515.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 24106591181 + ... + 24106593489.

It is an arithmetic number, because the mean of its divisors is an integer number (1198225828800).

Almost surely, 2^{55662121701515} is an apocalyptic number.

55662121701515 is a deficient number, since it is larger than the sum of its proper divisors (21024331341685).

55662121701515 is a wasteful number, since it uses less digits than its factorization.

55662121701515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5724.

The product of its (nonzero) digits is 630000, while the sum is 47.

The spelling of 55662121701515 in words is "fifty-five trillion, six hundred sixty-two billion, one hundred twenty-one million, seven hundred one thousand, five hundred fifteen".