264420404666 has 32 divisors (see below), whose sum is σ = 440110013760. Its totient is φ = 118130224000.

The previous prime is 264420404587. The next prime is 264420404789. The reversal of 264420404666 is 666404024462.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7512140 + ... + 7547256.

It is an arithmetic number, because the mean of its divisors is an integer number (13753437930).

Almost surely, 2^264420404666 is an apocalyptic number.

264420404666 is a deficient number, since it is larger than the sum of its proper divisors (175689609094).

264420404666 is a wasteful number, since it uses less digits than its factorization.

264420404666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40990.

The product of its (nonzero) digits is 1327104, while the sum is 44.

The spelling of 264420404666 in words is "two hundred sixty-four billion, four hundred twenty million, four hundred four thousand, six hundred sixty-six".