66077832 has 32 divisors (see below), whose sum is σ = 165480480. Its totient is φ = 21987840.

The previous prime is 66077813. The next prime is 66077849. The reversal of 66077832 is 23877066.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14107 + ... + 18197.

It is an arithmetic number, because the mean of its divisors is an integer number (5171265).

Almost surely, 2^66077832 is an apocalyptic number.

It is an amenable number.

66077832 is an abundant number, since it is smaller than the sum of its proper divisors (99402648).

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

66077832 is a wasteful number, since it uses less digits than its factorization.

66077832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4773 (or 4769 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 39.

The square root of 66077832 is about 8128.8272216846. The cubic root of 66077832 is about 404.2827971290.

The spelling of 66077832 in words is "sixty-six million, seventy-seven thousand, eight hundred thirty-two".