553665566355 has 32 divisors (see below), whose sum is σ = 973775202048. Its totient is φ = 266394710400.

The previous prime is 553665566341. The next prime is 553665566387.

553665566355 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 553665566355 - 2¹¹ = 553665564307 is a prime.

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, 12785824 + ... + 12829053.

It is an arithmetic number, because the mean of its divisors is an integer number (30430475064).

Almost surely, 2^553665566355 is an apocalyptic number.

553665566355 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

553665566355 is a deficient number, since it is larger than the sum of its proper divisors (420109635693).

553665566355 is a wasteful number, since it uses less digits than its factorization.

553665566355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25615027.

The product of its digits is 182250000, while the sum is 60.

The spelling of 553665566355 in words is "five hundred fifty-three billion, six hundred sixty-five million, five hundred sixty-six thousand, three hundred fifty-five".