264646220046 has 32 divisors (see below), whose sum is σ = 573504247680. Its totient is φ = 80930034144.

The previous prime is 264646220023. The next prime is 264646220077. The reversal of 264646220046 is 640022646462.

It is a congruent number.

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, 10394956 + ... + 10420383.

It is an arithmetic number, because the mean of its divisors is an integer number (17922007740).

Almost surely, 2^264646220046 is an apocalyptic number.

264646220046 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

264646220046 is an abundant number, since it is smaller than the sum of its proper divisors (308858027634).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

264646220046 is a wasteful number, since it uses less digits than its factorization.

264646220046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20815520.

The product of its (nonzero) digits is 663552, while the sum is 42.

The spelling of 264646220046 in words is "two hundred sixty-four billion, six hundred forty-six million, two hundred twenty thousand, forty-six".