664000041 has 16 divisors (see below), whose sum is σ = 926300160. Its totient is φ = 422286480.

The previous prime is 664000031. The next prime is 664000063. The reversal of 664000041 is 140000466.

It is not a de Polignac number, because 664000041 - 2⁷ = 663999913 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 663999981 and 664000017.

It is not an unprimeable number, because it can be changed into a prime (664000021) 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, 13456 + ... + 38846.

It is an arithmetic number, because the mean of its divisors is an integer number (57893760).

Almost surely, 2^664000041 is an apocalyptic number.

It is an amenable number.

664000041 is a deficient number, since it is larger than the sum of its proper divisors (262300119).

664000041 is a wasteful number, since it uses less digits than its factorization.

664000041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25796.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 664000041 is about 25768.1982490045. The cubic root of 664000041 is about 872.4141522473.

The spelling of 664000041 in words is "six hundred sixty-four million, forty-one", and thus it is an aban number.