1056991276880 has 160 divisors (see below), whose sum is σ = 3105874568448. Its totient is φ = 324938649600.

The previous prime is 1056991276877. The next prime is 1056991276883. The reversal of 1056991276880 is 886721996501.

It is an interprime number because it is at equal distance from previous prime (1056991276877) and next prime (1056991276883).

It is a super-2 number, since 2×1056991276880² (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 (1056991276883) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 725591 + ... + 1624950.

Almost surely, 2^{1056991276880} is an apocalyptic number.

1056991276880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1056991276880 is an abundant number, since it is smaller than the sum of its proper divisors (2048883291568).

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

1056991276880 is a wasteful number, since it uses less digits than its factorization.

1056991276880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2350645 (or 2350639 counting only the distinct ones).

The product of its (nonzero) digits is 13063680, while the sum is 62.

The spelling of 1056991276880 in words is "one trillion, fifty-six billion, nine hundred ninety-one million, two hundred seventy-six thousand, eight hundred eighty".