1056201105520 has 80 divisors (see below), whose sum is σ = 2692936212480. Its totient is φ = 382062214400.

The previous prime is 1056201105517. The next prime is 1056201105521. The reversal of 1056201105520 is 255011026501.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×1056201105520² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1056201105521) 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 15 ways as a sum of consecutive naturals, for example, 2973880 + ... + 3310039.

It is an arithmetic number, because the mean of its divisors is an integer number (33661702656).

Almost surely, 2^{1056201105520} is an apocalyptic number.

1056201105520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1056201105520 is an abundant number, since it is smaller than the sum of its proper divisors (1636735106960).

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

1056201105520 is a wasteful number, since it uses less digits than its factorization.

1056201105520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6284134 (or 6284128 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 28.

The spelling of 1056201105520 in words is "one trillion, fifty-six billion, two hundred one million, one hundred five thousand, five hundred twenty".