66599160 has 64 divisors (see below), whose sum is σ = 206254080. Its totient is φ = 17185920.

The previous prime is 66599153. The next prime is 66599177. The reversal of 66599160 is 6199566.

It is a super-2 number, since 2×66599160² = 8870896225411200, which contains 22 as substring.

It is a zygodrome in base 2.

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, 5232 + ... + 12671.

It is an arithmetic number, because the mean of its divisors is an integer number (3222720).

Almost surely, 2^66599160 is an apocalyptic number.

66599160 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

66599160 is an abundant number, since it is smaller than the sum of its proper divisors (139654920).

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

66599160 is a wasteful number, since it uses less digits than its factorization.

66599160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17948 (or 17944 counting only the distinct ones).

The product of its (nonzero) digits is 87480, while the sum is 42.

The square root of 66599160 is about 8160.8308400554. The cubic root of 66599160 is about 405.3432237555.

The spelling of 66599160 in words is "sixty-six million, five hundred ninety-nine thousand, one hundred sixty".