2661790759672 has 32 divisors (see below), whose sum is σ = 5446640303280. Its totient is φ = 1209445269760.

The previous prime is 2661790759571. The next prime is 2661790759699. The reversal of 2661790759672 is 2769570971662.

It is a junction number, because it is equal to n+sod(n) for n = 2661790759598 and 2661790759607.

It is a congruent number.

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, 5512243 + ... + 5975650.

Almost surely, 2^{2661790759672} is an apocalyptic number.

2661790759672 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2661790759672 is an abundant number, since it is smaller than the sum of its proper divisors (2784849543608).

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

2661790759672 is a wasteful number, since it uses less digits than its factorization.

2661790759672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11490543 (or 11490539 counting only the distinct ones).

The product of its (nonzero) digits is 120022560, while the sum is 67.

The spelling of 2661790759672 in words is "two trillion, six hundred sixty-one billion, seven hundred ninety million, seven hundred fifty-nine thousand, six hundred seventy-two".