66922803 has 6 divisors (see below), whose sum is σ = 96666284. Its totient is φ = 44615196.

The previous prime is 66922789. The next prime is 66922819. The reversal of 66922803 is 30822966.

It is not a de Polignac number, because 66922803 - 2⁴ = 66922787 is a prime.

It is a super-2 number, since 2×66922803² = 8957323122753618, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66922853) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3717925 + ... + 3717942.

Almost surely, 2^66922803 is an apocalyptic number.

66922803 is a deficient number, since it is larger than the sum of its proper divisors (29743481).

66922803 is a wasteful number, since it uses less digits than its factorization.

66922803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7435873 (or 7435870 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 66922803 is about 8180.6358554821. The cubic root of 66922803 is about 405.9987603803.

The spelling of 66922803 in words is "sixty-six million, nine hundred twenty-two thousand, eight hundred three".