22157045650 has 24 divisors (see below), whose sum is σ = 41576824404. Its totient is φ = 8784384000.

The previous prime is 22157045639. The next prime is 22157045657. The reversal of 22157045650 is 5654075122.

It can be written as a sum of positive squares in 6 ways, for example, as 609447969 + 21547597681 = 24687^2 + 146791^2 .

It is not an unprimeable number, because it can be changed into a prime (22157045657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1955151 + ... + 1966450.

Almost surely, 2^22157045650 is an apocalyptic number.

22157045650 is a deficient number, since it is larger than the sum of its proper divisors (19419778754).

22157045650 is a wasteful number, since it uses less digits than its factorization.

22157045650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3921726 (or 3921721 counting only the distinct ones).

The product of its (nonzero) digits is 84000, while the sum is 37.

The spelling of 22157045650 in words is "twenty-two billion, one hundred fifty-seven million, forty-five thousand, six hundred fifty".