66422355 has 16 divisors (see below), whose sum is σ = 106439424. Its totient is φ = 35370720.

The previous prime is 66422341. The next prime is 66422359. The reversal of 66422355 is 55322466.

It is not a de Polignac number, because 66422355 - 2⁴ = 66422339 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66422359) 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, 7860 + ... + 13950.

It is an arithmetic number, because the mean of its divisors is an integer number (6652464).

Almost surely, 2^66422355 is an apocalyptic number.

66422355 is a deficient number, since it is larger than the sum of its proper divisors (40017069).

66422355 is a wasteful number, since it uses less digits than its factorization.

66422355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6826.

The product of its digits is 43200, while the sum is 33.

The square root of 66422355 is about 8149.9911042896. The cubic root of 66422355 is about 404.9842091085.

The spelling of 66422355 in words is "sixty-six million, four hundred twenty-two thousand, three hundred fifty-five".