66225790410651 has 12 divisors (see below), whose sum is σ = 95659611676200. Its totient is φ = 44150463876480.

The previous prime is 66225790410643. The next prime is 66225790410671. The reversal of 66225790410651 is 15601409752266.

66225790410651 is a `hidden beast` number, since 6 + 6 + 2 + 2 + 579 + 0 + 4 + 1 + 0 + 65 + 1 = 666.

It is not a de Polignac number, because 66225790410651 - 2³ = 66225790410643 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66225790410671) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1909675 + ... + 11666123.

It is an arithmetic number, because the mean of its divisors is an integer number (7971634306350).

Almost surely, 2^{66225790410651} is an apocalyptic number.

66225790410651 is a deficient number, since it is larger than the sum of its proper divisors (29433821265549).

66225790410651 is a wasteful number, since it uses less digits than its factorization.

66225790410651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10510666 (or 10510663 counting only the distinct ones).

The product of its (nonzero) digits is 5443200, while the sum is 54.

The spelling of 66225790410651 in words is "sixty-six trillion, two hundred twenty-five billion, seven hundred ninety million, four hundred ten thousand, six hundred fifty-one".