20272398660 has 96 divisors (see below), whose sum is σ = 63092131200. Its totient is φ = 5404049280.

The previous prime is 20272398649. The next prime is 20272398689. The reversal of 20272398660 is 6689327202.

It is a super-4 number, since 4×20272398660⁴ (a number of 42 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2165590 + ... + 2174930.

It is an arithmetic number, because the mean of its divisors is an integer number (657209700).

Almost surely, 2^20272398660 is an apocalyptic number.

20272398660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20272398660 is an abundant number, since it is smaller than the sum of its proper divisors (42819732540).

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

20272398660 is a wasteful number, since it uses less digits than its factorization.

20272398660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13378 (or 13370 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The spelling of 20272398660 in words is "twenty billion, two hundred seventy-two million, three hundred ninety-eight thousand, six hundred sixty".