104720017655 has 16 divisors (see below), whose sum is σ = 137095815168. Its totient is φ = 76155684000.

The previous prime is 104720017637. The next prime is 104720017669. The reversal of 104720017655 is 556710027401.

It is not a de Polignac number, because 104720017655 - 2²² = 104715823351 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1173050 + ... + 1259160.

It is an arithmetic number, because the mean of its divisors is an integer number (8568488448).

Almost surely, 2^104720017655 is an apocalyptic number.

104720017655 is a deficient number, since it is larger than the sum of its proper divisors (32375797513).

104720017655 is a wasteful number, since it uses less digits than its factorization.

104720017655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108238.

The product of its (nonzero) digits is 58800, while the sum is 38.

The spelling of 104720017655 in words is "one hundred four billion, seven hundred twenty million, seventeen thousand, six hundred fifty-five".