20153222660 has 48 divisors (see below), whose sum is σ = 42665374080. Its totient is φ = 7996047360.

The previous prime is 20153222653. The next prime is 20153222669. The reversal of 20153222660 is 6622235102.

It is not an unprimeable number, because it can be changed into a prime (20153222669) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1633796 + ... + 1646084.

It is an arithmetic number, because the mean of its divisors is an integer number (888861960).

Almost surely, 2^20153222660 is an apocalyptic number.

20153222660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20153222660 is an abundant number, since it is smaller than the sum of its proper divisors (22512151420).

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

20153222660 is a wasteful number, since it uses less digits than its factorization.

20153222660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12956 (or 12954 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

Adding to 20153222660 its reverse (6622235102), we get a palindrome (26775457762).

The spelling of 20153222660 in words is "twenty billion, one hundred fifty-three million, two hundred twenty-two thousand, six hundred sixty".