53651166403555 has 32 divisors (see below), whose sum is σ = 79069693487616. Its totient is φ = 34108495179264.

The previous prime is 53651166403547. The next prime is 53651166403579. The reversal of 53651166403555 is 55530466115635.

It is a cyclic number.

It is not a de Polignac number, because 53651166403555 - 2³ = 53651166403547 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 53651166403496 and 53651166403505.

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, 672870789 + ... + 672950518.

It is an arithmetic number, because the mean of its divisors is an integer number (2470927921488).

Almost surely, 2^{53651166403555} is an apocalyptic number.

53651166403555 is a deficient number, since it is larger than the sum of its proper divisors (25418527084061).

53651166403555 is a wasteful number, since it uses less digits than its factorization.

53651166403555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1345821403.

The product of its (nonzero) digits is 24300000, while the sum is 55.

The spelling of 53651166403555 in words is "fifty-three trillion, six hundred fifty-one billion, one hundred sixty-six million, four hundred three thousand, five hundred fifty-five".