664246022194 has 16 divisors (see below), whose sum is σ = 1010075814432. Its totient is φ = 327554605728.

The previous prime is 664246022171. The next prime is 664246022249. The reversal of 664246022194 is 491220642466.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2624257 + ... + 2866219.

It is an arithmetic number, because the mean of its divisors is an integer number (63129738402).

Almost surely, 2^664246022194 is an apocalyptic number.

664246022194 is a deficient number, since it is larger than the sum of its proper divisors (345829792238).

664246022194 is a wasteful number, since it uses less digits than its factorization.

664246022194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260841.

The product of its (nonzero) digits is 995328, while the sum is 46.

The spelling of 664246022194 in words is "six hundred sixty-four billion, two hundred forty-six million, twenty-two thousand, one hundred ninety-four".