31164266220406 has 32 divisors (see below), whose sum is σ = 51322538598912. Its totient is φ = 14074896195360.

The previous prime is 31164266220361. The next prime is 31164266220413. The reversal of 31164266220406 is 60402266246113.

It is a super-2 number, since 2×31164266220406² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 122168365 + ... + 122423191.

It is an arithmetic number, because the mean of its divisors is an integer number (1603829331216).

Almost surely, 2^{31164266220406} is an apocalyptic number.

31164266220406 is a deficient number, since it is larger than the sum of its proper divisors (20158272378506).

31164266220406 is a wasteful number, since it uses less digits than its factorization.

31164266220406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290404.

The product of its (nonzero) digits is 497664, while the sum is 43.

The spelling of 31164266220406 in words is "thirty-one trillion, one hundred sixty-four billion, two hundred sixty-six million, two hundred twenty thousand, four hundred six".