66550711070325 has 24 divisors (see below), whose sum is σ = 110030970581056. Its totient is φ = 35493563664000.

The previous prime is 66550711070279. The next prime is 66550711070341. The reversal of 66550711070325 is 52307011705566.

It is not a de Polignac number, because 66550711070325 - 2⁸ = 66550711070069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17463720 + ... + 20930430.

Almost surely, 2^{66550711070325} is an apocalyptic number.

It is an amenable number.

66550711070325 is a deficient number, since it is larger than the sum of its proper divisors (43480259510731).

66550711070325 is a wasteful number, since it uses less digits than its factorization.

66550711070325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3722685 (or 3722680 counting only the distinct ones).

The product of its (nonzero) digits is 1323000, while the sum is 48.

The spelling of 66550711070325 in words is "sixty-six trillion, five hundred fifty billion, seven hundred eleven million, seventy thousand, three hundred twenty-five".