1056621664010 has 64 divisors (see below), whose sum is σ = 2226963383424. Its totient is φ = 356670720000.

The previous prime is 1056621663949. The next prime is 1056621664037. The reversal of 1056621664010 is 104661266501.

It is a happy number.

It is a super-2 number, since 2×1056621664010² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3733616 + ... + 4006635.

It is an arithmetic number, because the mean of its divisors is an integer number (34796302866).

Almost surely, 2^{1056621664010} is an apocalyptic number.

1056621664010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1056621664010 is an abundant number, since it is smaller than the sum of its proper divisors (1170341719414).

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

1056621664010 is a wasteful number, since it uses less digits than its factorization.

1056621664010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7740359.

The product of its (nonzero) digits is 51840, while the sum is 38.

The spelling of 1056621664010 in words is "one trillion, fifty-six billion, six hundred twenty-one million, six hundred sixty-four thousand, ten".