66022879 has 16 divisors (see below), whose sum is σ = 74592000. Its totient is φ = 58012416.

The previous prime is 66022877. The next prime is 66022889. The reversal of 66022879 is 97822066.

It is a cyclic number.

It is not a de Polignac number, because 66022879 - 2¹ = 66022877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66022877) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26322 + ... + 28720.

It is an arithmetic number, because the mean of its divisors is an integer number (4662000).

Almost surely, 2^66022879 is an apocalyptic number.

66022879 is a deficient number, since it is larger than the sum of its proper divisors (8569121).

66022879 is a wasteful number, since it uses less digits than its factorization.

66022879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2514.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 66022879 is about 8125.4463877377. The cubic root of 66022879 is about 404.1706934000.

The spelling of 66022879 in words is "sixty-six million, twenty-two thousand, eight hundred seventy-nine".