6561560962876 has 12 divisors (see below), whose sum is σ = 11482977879072. Its totient is φ = 3280710140288.

The previous prime is 6561560962837. The next prime is 6561560962897. The reversal of 6561560962876 is 6782690651656.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17375125 + ... + 17748748.

It is an arithmetic number, because the mean of its divisors is an integer number (956914823256).

Almost surely, 2^{6561560962876} is an apocalyptic number.

It is an amenable number.

6561560962876 is a deficient number, since it is larger than the sum of its proper divisors (4921416916196).

6561560962876 is a wasteful number, since it uses less digits than its factorization.

6561560962876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35170580 (or 35170578 counting only the distinct ones).

The product of its (nonzero) digits is 195955200, while the sum is 67.

The spelling of 6561560962876 in words is "six trillion, five hundred sixty-one billion, five hundred sixty million, nine hundred sixty-two thousand, eight hundred seventy-six".