20416446264 has 32 divisors (see below), whose sum is σ = 52286023440. Its totient is φ = 6639494400.

The previous prime is 20416446241. The next prime is 20416446269. The reversal of 20416446264 is 46264461402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20416446269) by changing a digit.

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, 10373227 + ... + 10375194.

Almost surely, 2^20416446264 is an apocalyptic number.

20416446264 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20416446264 is an abundant number, since it is smaller than the sum of its proper divisors (31869577176).

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

20416446264 is a wasteful number, since it uses less digits than its factorization.

20416446264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20748471 (or 20748467 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 39.

The spelling of 20416446264 in words is "twenty billion, four hundred sixteen million, four hundred forty-six thousand, two hundred sixty-four".