622326666 has 16 divisors (see below), whose sum is σ = 1340396064. Its totient is φ = 191485104.

The previous prime is 622326647. The next prime is 622326707. The reversal of 622326666 is 666623226.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3989196 + ... + 3989351.

It is an arithmetic number, because the mean of its divisors is an integer number (83774754).

Almost surely, 2^622326666 is an apocalyptic number.

622326666 is an abundant number, since it is smaller than the sum of its proper divisors (718069398).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

622326666 is a wasteful number, since it uses less digits than its factorization.

622326666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7978565.

The product of its digits is 186624, while the sum is 39.

The square root of 622326666 is about 24946.4760236792. The cubic root of 622326666 is about 853.7672079832.

The spelling of 622326666 in words is "six hundred twenty-two million, three hundred twenty-six thousand, six hundred sixty-six".