66004250275 has 12 divisors (see below), whose sum is σ = 81935139744. Its totient is φ = 52745420000.

The previous prime is 66004250197. The next prime is 66004250317. The reversal of 66004250275 is 57205240066.

It is not a de Polignac number, because 66004250275 - 2¹⁵ = 66004217507 is a prime.

It is a super-2 number, since 2×66004250275² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1426276 + ... + 1471825.

It is an arithmetic number, because the mean of its divisors is an integer number (6827928312).

Almost surely, 2^66004250275 is an apocalyptic number.

66004250275 is a deficient number, since it is larger than the sum of its proper divisors (15930889469).

66004250275 is a wasteful number, since it uses less digits than its factorization.

66004250275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2899022 (or 2899017 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 37.

The spelling of 66004250275 in words is "sixty-six billion, four million, two hundred fifty thousand, two hundred seventy-five".