2661052897690 has 32 divisors (see below), whose sum is σ = 5226000633216. Its totient is φ = 967533303360.

The previous prime is 2661052897639. The next prime is 2661052897747. The reversal of 2661052897690 is 967982501662.

It is a super-2 number, since 2×2661052897690² (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 15 ways as a sum of consecutive naturals, for example, 652102 + ... + 2397361.

It is an arithmetic number, because the mean of its divisors is an integer number (163312519788).

Almost surely, 2^{2661052897690} is an apocalyptic number.

2661052897690 is a deficient number, since it is larger than the sum of its proper divisors (2564947735526).

2661052897690 is a wasteful number, since it uses less digits than its factorization.

2661052897690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3057414.

The product of its (nonzero) digits is 19595520, while the sum is 61.

The spelling of 2661052897690 in words is "two trillion, six hundred sixty-one billion, fifty-two million, eight hundred ninety-seven thousand, six hundred ninety".