3497561866560 has 112 divisors (see below), whose sum is σ = 11208542049216. Its totient is φ = 923966472192.

The previous prime is 3497561866529. The next prime is 3497561866567. The reversal of 3497561866560 is 656681657943.

It is a junction number, because it is equal to n+sod(n) for n = 3497561866491 and 3497561866500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3497561866567) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16922017 + ... + 17127456.

Almost surely, 2^{3497561866560} is an apocalyptic number.

3497561866560 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3497561866560 is an abundant number, since it is smaller than the sum of its proper divisors (7710980182656).

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

3497561866560 is a wasteful number, since it uses less digits than its factorization.

3497561866560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34049600 (or 34049590 counting only the distinct ones).

The product of its (nonzero) digits is 195955200, while the sum is 66.

The spelling of 3497561866560 in words is "three trillion, four hundred ninety-seven billion, five hundred sixty-one million, eight hundred sixty-six thousand, five hundred sixty".