164083881 has 32 divisors (see below), whose sum is σ = 250508160. Its totient is φ = 94639104.

The previous prime is 164083877. The next prime is 164083883. The reversal of 164083881 is 188380461.

It is not a de Polignac number, because 164083881 - 2² = 164083877 is a prime.

It is a super-2 number, since 2×164083881² = 53847040008044322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (164083883) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 250951 + ... + 251603.

It is an arithmetic number, because the mean of its divisors is an integer number (7828380).

Almost surely, 2^164083881 is an apocalyptic number.

It is an amenable number.

164083881 is a deficient number, since it is larger than the sum of its proper divisors (86424279).

164083881 is a wasteful number, since it uses less digits than its factorization.

164083881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1065.

The product of its (nonzero) digits is 36864, while the sum is 39.

The square root of 164083881 is about 12809.5230590370. The cubic root of 164083881 is about 547.4636726590.

The spelling of 164083881 in words is "one hundred sixty-four million, eighty-three thousand, eight hundred eighty-one".