2660790705738 has 16 divisors (see below), whose sum is σ = 5805361539936. Its totient is φ = 806300213840.

The previous prime is 2660790705721. The next prime is 2660790705761. The reversal of 2660790705738 is 8375070970662.

2660790705738 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2660790705738² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20157505281 + ... + 20157505412.

It is an arithmetic number, because the mean of its divisors is an integer number (362835096246).

Almost surely, 2^{2660790705738} is an apocalyptic number.

2660790705738 is an abundant number, since it is smaller than the sum of its proper divisors (3144570834198).

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

2660790705738 is a wasteful number, since it uses less digits than its factorization.

2660790705738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40315010709.

The product of its (nonzero) digits is 26671680, while the sum is 60.

The spelling of 2660790705738 in words is "two trillion, six hundred sixty billion, seven hundred ninety million, seven hundred five thousand, seven hundred thirty-eight".