622406200666 has 4 divisors (see below), whose sum is σ = 933609301002. Its totient is φ = 311203100332.

The previous prime is 622406200643. The next prime is 622406200693. The reversal of 622406200666 is 666002604226.

It is a happy number.

622406200666 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 621304956441 + 1101244225 = 788229^2 + 33185^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155601550165 + ... + 155601550168.

Almost surely, 2^622406200666 is an apocalyptic number.

622406200666 is a deficient number, since it is larger than the sum of its proper divisors (311203100336).

622406200666 is a wasteful number, since it uses less digits than its factorization.

622406200666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311203100335.

The product of its (nonzero) digits is 248832, while the sum is 40.

The spelling of 622406200666 in words is "six hundred twenty-two billion, four hundred six million, two hundred thousand, six hundred sixty-six".