66377153 has 4 divisors (see below), whose sum is σ = 66401280. Its totient is φ = 66353028.

The previous prime is 66377141. The next prime is 66377167. The reversal of 66377153 is 35177366.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 66377153 - 2¹² = 66373057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66377123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7313 + ... + 13646.

It is an arithmetic number, because the mean of its divisors is an integer number (16600320).

Almost surely, 2^66377153 is an apocalyptic number.

It is an amenable number.

66377153 is a deficient number, since it is larger than the sum of its proper divisors (24127).

66377153 is a wasteful number, since it uses less digits than its factorization.

66377153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24126.

The product of its digits is 79380, while the sum is 38.

The square root of 66377153 is about 8147.2175004722. The cubic root of 66377153 is about 404.8923211170.

The spelling of 66377153 in words is "sixty-six million, three hundred seventy-seven thousand, one hundred fifty-three".