2660649104800 has 72 divisors (see below), whose sum is σ = 6500783985696. Its totient is φ = 1063362666240.

The previous prime is 2660649104713. The next prime is 2660649104851. The reversal of 2660649104800 is 84019460662.

It is a super-3 number, since 3×2660649104800³ (a number of 38 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 451332 + ... + 2350531.

It is an arithmetic number, because the mean of its divisors is an integer number (90288666468).

Almost surely, 2^{2660649104800} is an apocalyptic number.

2660649104800 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2660649104800 is an abundant number, since it is smaller than the sum of its proper divisors (3840134880896).

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

2660649104800 is a wasteful number, since it uses less digits than its factorization.

2660649104800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2803070 (or 2803057 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 46.

The spelling of 2660649104800 in words is "two trillion, six hundred sixty billion, six hundred forty-nine million, one hundred four thousand, eight hundred".