3156522667421 has 16 divisors (see below), whose sum is σ = 3175164005760. Its totient is φ = 3137940025920.

The previous prime is 3156522667367. The next prime is 3156522667591. The reversal of 3156522667421 is 1247662256513.

It is a cyclic number.

It is not a de Polignac number, because 3156522667421 - 2³⁴ = 3139342798237 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3156522667421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3156522667321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 262884200 + ... + 262896206.

It is an arithmetic number, because the mean of its divisors is an integer number (198447750360).

Almost surely, 2^{3156522667421} is an apocalyptic number.

It is an amenable number.

3156522667421 is a deficient number, since it is larger than the sum of its proper divisors (18641338339).

3156522667421 is a wasteful number, since it uses less digits than its factorization.

3156522667421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14324.

The product of its digits is 3628800, while the sum is 50.

The spelling of 3156522667421 in words is "three trillion, one hundred fifty-six billion, five hundred twenty-two million, six hundred sixty-seven thousand, four hundred twenty-one".