66361059 has 8 divisors (see below), whose sum is σ = 98312720. Its totient is φ = 44240688.

The previous prime is 66361051. The next prime is 66361067. The reversal of 66361059 is 95016366.

66361059 is a `hidden beast` number, since 6 + 636 + 10 + 5 + 9 = 666.

It is an interprime number because it is at equal distance from previous prime (66361051) and next prime (66361067).

It is not a de Polignac number, because 66361059 - 2³ = 66361051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66361051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1228882 + ... + 1228935.

It is an arithmetic number, because the mean of its divisors is an integer number (12289090).

Almost surely, 2^66361059 is an apocalyptic number.

66361059 is a deficient number, since it is larger than the sum of its proper divisors (31951661).

66361059 is a wasteful number, since it uses less digits than its factorization.

66361059 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2457826 (or 2457820 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 36.

The square root of 66361059 is about 8146.2297414203. The cubic root of 66361059 is about 404.8595946770.

The spelling of 66361059 in words is "sixty-six million, three hundred sixty-one thousand, fifty-nine".