1656711211660 has 12 divisors (see below), whose sum is σ = 3479093544528. Its totient is φ = 662684484656.

The previous prime is 1656711211643. The next prime is 1656711211663. The reversal of 1656711211660 is 661121176561.

It is not an unprimeable number, because it can be changed into a prime (1656711211663) 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, 41417780272 + ... + 41417780311.

It is an arithmetic number, because the mean of its divisors is an integer number (289924462044).

Almost surely, 2^{1656711211660} is an apocalyptic number.

1656711211660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1656711211660 is an abundant number, since it is smaller than the sum of its proper divisors (1822382332868).

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

1656711211660 is a wasteful number, since it uses less digits than its factorization.

1656711211660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82835560592 (or 82835560590 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 43.

The spelling of 1656711211660 in words is "one trillion, six hundred fifty-six billion, seven hundred eleven million, two hundred eleven thousand, six hundred sixty".