855599231633 has 4 divisors (see below), whose sum is σ = 900630770160. Its totient is φ = 810567693108.

The previous prime is 855599231561. The next prime is 855599231653. The reversal of 855599231633 is 336132995558.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 855599231633 - 2¹⁴ = 855599215249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (855599231653) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22515769235 + ... + 22515769272.

It is an arithmetic number, because the mean of its divisors is an integer number (225157692540).

Almost surely, 2^855599231633 is an apocalyptic number.

It is an amenable number.

855599231633 is a deficient number, since it is larger than the sum of its proper divisors (45031538527).

855599231633 is a wasteful number, since it uses less digits than its factorization.

855599231633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45031538526.

The product of its digits is 26244000, while the sum is 59.

The spelling of 855599231633 in words is "eight hundred fifty-five billion, five hundred ninety-nine million, two hundred thirty-one thousand, six hundred thirty-three".