22747474660 has 12 divisors (see below), whose sum is σ = 47769696828. Its totient is φ = 9098989856.

The previous prime is 22747474613. The next prime is 22747474661. The reversal of 22747474660 is 6647474722.

It can be written as a sum of positive squares in 2 ways, for example, as 3464264164 + 19283210496 = 58858^2 + 138864^2 .

It is not an unprimeable number, because it can be changed into a prime (22747474661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 568686847 + ... + 568686886.

It is an arithmetic number, because the mean of its divisors is an integer number (3980808069).

Almost surely, 2^22747474660 is an apocalyptic number.

22747474660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22747474660 is an abundant number, since it is smaller than the sum of its proper divisors (25022222168).

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

22747474660 is a wasteful number, since it uses less digits than its factorization.

22747474660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1137373742 (or 1137373740 counting only the distinct ones).

The product of its (nonzero) digits is 3161088, while the sum is 49.

The spelling of 22747474660 in words is "twenty-two billion, seven hundred forty-seven million, four hundred seventy-four thousand, six hundred sixty".