66162365 has 8 divisors (see below), whose sum is σ = 79553880. Its totient is φ = 52823872.

The previous prime is 66162361. The next prime is 66162377. The reversal of 66162365 is 56326166.

It can be written as a sum of positive squares in 4 ways, for example, as 4414201 + 61748164 = 2101^2 + 7858^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 66162365 - 2² = 66162361 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66162361) 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 7 ways as a sum of consecutive naturals, for example, 10454 + ... + 15543.

It is an arithmetic number, because the mean of its divisors is an integer number (9944235).

Almost surely, 2^66162365 is an apocalyptic number.

It is an amenable number.

66162365 is a deficient number, since it is larger than the sum of its proper divisors (13391515).

66162365 is a wasteful number, since it uses less digits than its factorization.

66162365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26511.

The product of its digits is 38880, while the sum is 35.

The square root of 66162365 is about 8134.0251413430. The cubic root of 66162365 is about 404.4551225701.

The spelling of 66162365 in words is "sixty-six million, one hundred sixty-two thousand, three hundred sixty-five".