66512482392 has 64 divisors (see below), whose sum is σ = 175214275200. Its totient is φ = 20982170880.

The previous prime is 66512482367. The next prime is 66512482423. The reversal of 66512482392 is 29328421566.

It is a happy number.

It is a super-2 number, since 2×66512482392² (a number of 22 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 367668 + ... + 517884.

It is an arithmetic number, because the mean of its divisors is an integer number (2737723050).

Almost surely, 2^66512482392 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66512482392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87607137600).

66512482392 is an abundant number, since it is smaller than the sum of its proper divisors (108701792808).

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

66512482392 is a wasteful number, since it uses less digits than its factorization.

66512482392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151216 (or 151212 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 48.

The spelling of 66512482392 in words is "sixty-six billion, five hundred twelve million, four hundred eighty-two thousand, three hundred ninety-two".