66823258032 has 60 divisors (see below), whose sum is σ = 187096299624. Its totient is φ = 22264416000.

The previous prime is 66823258013. The next prime is 66823258043. The reversal of 66823258032 is 23085232866.

66823258032 is a `hidden beast` number, since 6 + 6 + 8 + 2 + 32 + 580 + 32 = 666.

It is a super-2 number, since 2×66823258032² (a number of 22 digits) contains 22 as substring.

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, 221068 + ... + 427220.

Almost surely, 2^66823258032 is an apocalyptic number.

It is an amenable number.

66823258032 is an abundant number, since it is smaller than the sum of its proper divisors (120273041592).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66823258032 is a wasteful number, since it uses less digits than its factorization.

66823258032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208418 (or 208409 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 45.

The spelling of 66823258032 in words is "sixty-six billion, eight hundred twenty-three million, two hundred fifty-eight thousand, thirty-two".