55602566261605 has 96 divisors (see below), whose sum is σ = 76174903107072. Its totient is φ = 38908081935360.

The previous prime is 55602566261591. The next prime is 55602566261617. The reversal of 55602566261605 is 50616266520655.

It is not a de Polignac number, because 55602566261605 - 2¹³ = 55602566253413 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 637213159 + ... + 637300411.

It is an arithmetic number, because the mean of its divisors is an integer number (793488574032).

Almost surely, 2^{55602566261605} is an apocalyptic number.

55602566261605 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

55602566261605 is a deficient number, since it is larger than the sum of its proper divisors (20572336845467).

55602566261605 is a wasteful number, since it uses less digits than its factorization.

55602566261605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87707 (or 87696 counting only the distinct ones).

The product of its (nonzero) digits is 19440000, while the sum is 55.

The spelling of 55602566261605 in words is "fifty-five trillion, six hundred two billion, five hundred sixty-six million, two hundred sixty-one thousand, six hundred five".