20270272660 has 48 divisors (see below), whose sum is σ = 49168969920. Its totient is φ = 6937418240.

The previous prime is 20270272619. The next prime is 20270272667. The reversal of 20270272660 is 6627207202.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20270272667) 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, 2706190 + ... + 2713669.

It is an arithmetic number, because the mean of its divisors is an integer number (1024353540).

Almost surely, 2^20270272660 is an apocalyptic number.

20270272660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20270272660 is an abundant number, since it is smaller than the sum of its proper divisors (28898697260).

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

20270272660 is a wasteful number, since it uses less digits than its factorization.

20270272660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5419896 (or 5419894 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 34.

Adding to 20270272660 its reverse (6627207202), we get a palindrome (26897479862).

The spelling of 20270272660 in words is "twenty billion, two hundred seventy million, two hundred seventy-two thousand, six hundred sixty".