2546664320 has 32 divisors (see below), whose sum is σ = 6088120920. Its totient is φ = 1018665472.

The previous prime is 2546664313. The next prime is 2546664347. The reversal of 2546664320 is 234666452.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×2546664320² = 12970998317522124800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1988942 + ... + 1990221.

Almost surely, 2^2546664320 is an apocalyptic number.

2546664320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2546664320 is an abundant number, since it is smaller than the sum of its proper divisors (3541456600).

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

2546664320 is an equidigital number, since it uses as much as digits as its factorization.

2546664320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3979182 (or 3979170 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 38.

The square root of 2546664320 is about 50464.4857300657. The cubic root of 2546664320 is about 1365.6012361188.

The spelling of 2546664320 in words is "two billion, five hundred forty-six million, six hundred sixty-four thousand, three hundred twenty".