1055533817412 has 72 divisors (see below), whose sum is σ = 2718969664320. Its totient is φ = 345146068800.

The previous prime is 1055533817347. The next prime is 1055533817413. The reversal of 1055533817412 is 2147183355501.

1055533817412 is a `hidden beast` number, since 1 + 0 + 5 + 553 + 3 + 81 + 7 + 4 + 12 = 666.

It is a super-2 number, since 2×1055533817412² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1055533817413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11691139 + ... + 11781077.

It is an arithmetic number, because the mean of its divisors is an integer number (37763467560).

Almost surely, 2^{1055533817412} is an apocalyptic number.

1055533817412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1055533817412 is an abundant number, since it is smaller than the sum of its proper divisors (1663435846908).

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

1055533817412 is a wasteful number, since it uses less digits than its factorization.

1055533817412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96153 (or 96148 counting only the distinct ones).

The product of its (nonzero) digits is 504000, while the sum is 45.

The spelling of 1055533817412 in words is "one trillion, fifty-five billion, five hundred thirty-three million, eight hundred seventeen thousand, four hundred twelve".