66622363 has 4 divisors (see below), whose sum is σ = 66835528. Its totient is φ = 66409200.

The previous prime is 66622333. The next prime is 66622393. The reversal of 66622363 is 36322666.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (66622333) and next prime (66622393).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66622363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66622333) 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, 106113 + ... + 106738.

It is an arithmetic number, because the mean of its divisors is an integer number (16708882).

Almost surely, 2^66622363 is an apocalyptic number.

66622363 is a deficient number, since it is larger than the sum of its proper divisors (213165).

66622363 is a wasteful number, since it uses less digits than its factorization.

66622363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213164.

The product of its digits is 46656, while the sum is 34.

The square root of 66622363 is about 8162.2523239606. The cubic root of 66622363 is about 405.3902918505.

It can be divided in two parts, 6662 and 2363, that added together give a square (9025 = 95²).

The spelling of 66622363 in words is "sixty-six million, six hundred twenty-two thousand, three hundred sixty-three".