3380691661720 has 32 divisors (see below), whose sum is σ = 7698201502320. Its totient is φ = 1335984173440.

The previous prime is 3380691661687. The next prime is 3380691661759. The reversal of 3380691661720 is 271661960833.

It is a happy number.

It is a super-2 number, since 2×3380691661720² (a number of 26 digits) contains 22 as substring.

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, 509136991 + ... + 509143630.

Almost surely, 2^{3380691661720} is an apocalyptic number.

It is an amenable number.

3380691661720 is an abundant number, since it is smaller than the sum of its proper divisors (4317509840600).

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

3380691661720 is a wasteful number, since it uses less digits than its factorization.

3380691661720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1018280715 (or 1018280711 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 52.

The spelling of 3380691661720 in words is "three trillion, three hundred eighty billion, six hundred ninety-one million, six hundred sixty-one thousand, seven hundred twenty".