1056616664611 has 4 divisors (see below), whose sum is σ = 1056780513000. Its totient is φ = 1056452816224.

The previous prime is 1056616664573. The next prime is 1056616664641. The reversal of 1056616664611 is 1164666166501.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1056616664611 is a prime.

It is a super-2 number, since 2×1056616664611² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1056616664641) 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, 81914521 + ... + 81927418.

It is an arithmetic number, because the mean of its divisors is an integer number (264195128250).

Almost surely, 2^{1056616664611} is an apocalyptic number.

1056616664611 is a deficient number, since it is larger than the sum of its proper divisors (163848389).

1056616664611 is an equidigital number, since it uses as much as digits as its factorization.

1056616664611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163848388.

The product of its (nonzero) digits is 933120, while the sum is 49.

The spelling of 1056616664611 in words is "one trillion, fifty-six billion, six hundred sixteen million, six hundred sixty-four thousand, six hundred eleven".