855511198444 has 12 divisors (see below), whose sum is σ = 1711022396944. Its totient is φ = 366647656464.

The previous prime is 855511198441. The next prime is 855511198447. The reversal of 855511198444 is 444891115558.

855511198444 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (855511198441) and next prime (855511198447).

855511198444 is an admirable number.

It is a super-2 number, since 2×855511198444² (a number of 25 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (55) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (855511198441) 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, 15276985659 + ... + 15276985714.

Almost surely, 2^855511198444 is an apocalyptic number.

It is an amenable number.

855511198444 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

855511198444 is a wasteful number, since it uses less digits than its factorization.

855511198444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30553971384 (or 30553971382 counting only the distinct ones).

The product of its digits is 4608000, while the sum is 55.

The spelling of 855511198444 in words is "eight hundred fifty-five billion, five hundred eleven million, one hundred ninety-eight thousand, four hundred forty-four".