22661151906 has 16 divisors (see below), whose sum is σ = 45575503200. Its totient is φ = 7511517408.

The previous prime is 22661151847. The next prime is 22661151923. The reversal of 22661151906 is 60915116622.

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, 10548811 + ... + 10550958.

It is an arithmetic number, because the mean of its divisors is an integer number (2848468950).

Almost surely, 2^22661151906 is an apocalyptic number.

22661151906 is an abundant number, since it is smaller than the sum of its proper divisors (22914351294).

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

22661151906 is a wasteful number, since it uses less digits than its factorization.

22661151906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21099953.

The product of its (nonzero) digits is 38880, while the sum is 39.

The spelling of 22661151906 in words is "twenty-two billion, six hundred sixty-one million, one hundred fifty-one thousand, nine hundred six".