66727080 has 96 divisors (see below), whose sum is σ = 247852800. Its totient is φ = 15251328.

The previous prime is 66727079. The next prime is 66727121. The reversal of 66727080 is 8072766.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10720 + ... + 15759.

It is an arithmetic number, because the mean of its divisors is an integer number (2581800).

Almost surely, 2^66727080 is an apocalyptic number.

66727080 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

66727080 is an abundant number, since it is smaller than the sum of its proper divisors (181125720).

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

66727080 is a wasteful number, since it uses less digits than its factorization.

66727080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26503 (or 26496 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 66727080 is about 8168.6645175328. The cubic root of 66727080 is about 405.6025780913.

The spelling of 66727080 in words is "sixty-six million, seven hundred twenty-seven thousand, eighty".