20602857360 has 160 divisors (see below), whose sum is σ = 65516520960. Its totient is φ = 5354035200.

The previous prime is 20602857343. The next prime is 20602857389. The reversal of 20602857360 is 6375820602.

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, 1589305 + ... + 1602215.

It is an arithmetic number, because the mean of its divisors is an integer number (409478256).

Almost surely, 2^20602857360 is an apocalyptic number.

20602857360 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20602857360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32758260480).

20602857360 is an abundant number, since it is smaller than the sum of its proper divisors (44913663600).

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

20602857360 is a wasteful number, since it uses less digits than its factorization.

20602857360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13097 (or 13091 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 39.

The spelling of 20602857360 in words is "twenty billion, six hundred two million, eight hundred fifty-seven thousand, three hundred sixty".