664446303410045 has 32 divisors (see below), whose sum is σ = 879763712002560. Its totient is φ = 478618080053760.

The previous prime is 664446303410023. The next prime is 664446303410053. The reversal of 664446303410045 is 540014303644466.

It is not a de Polignac number, because 664446303410045 - 2¹⁸ = 664446303147901 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 664446303409975 and 664446303410002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5991815 + ... + 36943124.

It is an arithmetic number, because the mean of its divisors is an integer number (27492616000080).

Almost surely, 2^{664446303410045} is an apocalyptic number.

664446303410045 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

664446303410045 is a deficient number, since it is larger than the sum of its proper divisors (215317408592515).

664446303410045 is a wasteful number, since it uses less digits than its factorization.

664446303410045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42940805.

The product of its (nonzero) digits is 9953280, while the sum is 50.

The spelling of 664446303410045 in words is "six hundred sixty-four trillion, four hundred forty-six billion, three hundred three million, four hundred ten thousand, forty-five".