6561225371146 has 8 divisors (see below), whose sum is σ = 9842425784640. Its totient is φ = 3280416776268.

The previous prime is 6561225371069. The next prime is 6561225371171. The reversal of 6561225371146 is 6411735221656.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 6561225371146.

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, 97912786 + ... + 97979773.

It is an arithmetic number, because the mean of its divisors is an integer number (1230303223080).

Almost surely, 2^{6561225371146} is an apocalyptic number.

6561225371146 is a deficient number, since it is larger than the sum of its proper divisors (3281200413494).

6561225371146 is a wasteful number, since it uses less digits than its factorization.

6561225371146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195909308.

The product of its digits is 1814400, while the sum is 49.

The spelling of 6561225371146 in words is "six trillion, five hundred sixty-one billion, two hundred twenty-five million, three hundred seventy-one thousand, one hundred forty-six".