66739116 has 12 divisors (see below), whose sum is σ = 155724632. Its totient is φ = 22246368.

The previous prime is 66739111. The next prime is 66739133. The reversal of 66739116 is 61193766.

66739116 is digitally balanced in base 9, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×66739116² = 8908219208922912, which contains 22 as substring.

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

66739116 is strictly pandigital in base 9.

It is not an unprimeable number, because it can be changed into a prime (66739111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2780785 + ... + 2780808.

Almost surely, 2^66739116 is an apocalyptic number.

It is an amenable number.

66739116 is an abundant number, since it is smaller than the sum of its proper divisors (88985516).

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

66739116 is a wasteful number, since it uses less digits than its factorization.

66739116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5561600 (or 5561598 counting only the distinct ones).

The product of its digits is 40824, while the sum is 39.

The square root of 66739116 is about 8169.4012020466. The cubic root of 66739116 is about 405.6269636887.

The spelling of 66739116 in words is "sixty-six million, seven hundred thirty-nine thousand, one hundred sixteen".