2164210560631 has 8 divisors (see below), whose sum is σ = 2473393113504. Its totient is φ = 1855030411680.

The previous prime is 2164210560623. The next prime is 2164210560679. The reversal of 2164210560631 is 1360650124612.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2164210560631 - 2³ = 2164210560623 is a prime.

It is a super-2 number, since 2×2164210560631² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2164210560691) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2196081 + ... + 3025093.

It is an arithmetic number, because the mean of its divisors is an integer number (309174139188).

Almost surely, 2^{2164210560631} is an apocalyptic number.

2164210560631 is a deficient number, since it is larger than the sum of its proper divisors (309182552873).

2164210560631 is an equidigital number, since it uses as much as digits as its factorization.

2164210560631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1201961.

The product of its (nonzero) digits is 51840, while the sum is 37.

The spelling of 2164210560631 in words is "two trillion, one hundred sixty-four billion, two hundred ten million, five hundred sixty thousand, six hundred thirty-one".