2164456331 has 8 divisors (see below), whose sum is σ = 2262069504. Its totient is φ = 2067135400.

The previous prime is 2164456319. The next prime is 2164456381. The reversal of 2164456331 is 1336544612.

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 2164456331 - 2²⁶ = 2097347467 is a prime.

It is a super-2 number, since 2×2164456331² = 9369742417611963122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2164456291 and 2164456300.

It is not an unprimeable number, because it can be changed into a prime (2164456381) 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, 57845 + ... + 87606.

It is an arithmetic number, because the mean of its divisors is an integer number (282758688).

Almost surely, 2^2164456331 is an apocalyptic number.

2164456331 is a deficient number, since it is larger than the sum of its proper divisors (97613173).

2164456331 is a wasteful number, since it uses less digits than its factorization.

2164456331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146121.

The product of its digits is 51840, while the sum is 35.

The square root of 2164456331 is about 46523.7179404226. The cubic root of 2164456331 is about 1293.5491731933.

The spelling of 2164456331 in words is "two billion, one hundred sixty-four million, four hundred fifty-six thousand, three hundred thirty-one".