201604246666 has 8 divisors (see below), whose sum is σ = 305232598080. Its totient is φ = 99860047308.

The previous prime is 201604246643. The next prime is 201604246681. The reversal of 201604246666 is 666642406102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 471037746 + ... + 471038173.

It is an arithmetic number, because the mean of its divisors is an integer number (38154074760).

Almost surely, 2^201604246666 is an apocalyptic number.

201604246666 is a deficient number, since it is larger than the sum of its proper divisors (103628351414).

201604246666 is a wasteful number, since it uses less digits than its factorization.

201604246666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 942076028.

The product of its (nonzero) digits is 497664, while the sum is 43.

The spelling of 201604246666 in words is "two hundred one billion, six hundred four million, two hundred forty-six thousand, six hundred sixty-six".