104998663855 has 4 divisors (see below), whose sum is σ = 125998396632. Its totient is φ = 83998931080.

The previous prime is 104998663829. The next prime is 104998663871. The reversal of 104998663855 is 558366899401.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 104998663855 - 2³¹ = 102851180207 is a prime.

It is a super-2 number, since 2×104998663855² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10499866381 + ... + 10499866390.

It is an arithmetic number, because the mean of its divisors is an integer number (31499599158).

Almost surely, 2^104998663855 is an apocalyptic number.

104998663855 is a deficient number, since it is larger than the sum of its proper divisors (20999732777).

104998663855 is an equidigital number, since it uses as much as digits as its factorization.

104998663855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20999732776.

The product of its (nonzero) digits is 55987200, while the sum is 64.

The spelling of 104998663855 in words is "one hundred four billion, nine hundred ninety-eight million, six hundred sixty-three thousand, eight hundred fifty-five".