1656667118325 has 12 divisors (see below), whose sum is σ = 2739022969088. Its totient is φ = 883555796400.

The previous prime is 1656667118311. The next prime is 1656667118347. The reversal of 1656667118325 is 5238117666561.

It is not a de Polignac number, because 1656667118325 - 2⁶ = 1656667118261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11044447381 + ... + 11044447530.

Almost surely, 2^{1656667118325} is an apocalyptic number.

1656667118325 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1656667118325 is a deficient number, since it is larger than the sum of its proper divisors (1082355850763).

1656667118325 is a wasteful number, since it uses less digits than its factorization.

1656667118325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22088894924 (or 22088894919 counting only the distinct ones).

The product of its digits is 10886400, while the sum is 57.

The spelling of 1656667118325 in words is "one trillion, six hundred fifty-six billion, six hundred sixty-seven million, one hundred eighteen thousand, three hundred twenty-five".