66560325351 has 12 divisors (see below), whose sum is σ = 96098932008. Its totient is φ = 40960199904.

The previous prime is 66560325331. The next prime is 66560325371. The reversal of 66560325351 is 15352306566.

It is an interprime number because it is at equal distance from previous prime (66560325331) and next prime (66560325371).

It is a de Polignac number, because none of the positive numbers 2^k-66560325351 is a prime.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66560325311) 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, 65640840 + ... + 65641853.

It is an arithmetic number, because the mean of its divisors is an integer number (8008244334).

Almost surely, 2^66560325351 is an apocalyptic number.

66560325351 is a deficient number, since it is larger than the sum of its proper divisors (29538606657).

66560325351 is a wasteful number, since it uses less digits than its factorization.

66560325351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131282722 (or 131282709 counting only the distinct ones).

The product of its (nonzero) digits is 486000, while the sum is 42.

The spelling of 66560325351 in words is "sixty-six billion, five hundred sixty million, three hundred twenty-five thousand, three hundred fifty-one".