206157622 has 12 divisors (see below), whose sum is σ = 339904908. Its totient is φ = 93707900.

The previous prime is 206157587. The next prime is 206157661. The reversal of 206157622 is 226751602.

206157622 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 425704 + ... + 426187.

It is an arithmetic number, because the mean of its divisors is an integer number (28325409).

Almost surely, 2^206157622 is an apocalyptic number.

206157622 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

206157622 is a deficient number, since it is larger than the sum of its proper divisors (133747286).

206157622 is a wasteful number, since it uses less digits than its factorization.

206157622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 851915 (or 851904 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 206157622 is about 14358.1900669966. The cubic root of 206157622 is about 590.7446520256.

The spelling of 206157622 in words is "two hundred six million, one hundred fifty-seven thousand, six hundred twenty-two".