20602551330 has 96 divisors (see below), whose sum is σ = 55961418240. Its totient is φ = 5252670720.

The previous prime is 20602551329. The next prime is 20602551337. The reversal of 20602551330 is 3315520602.

20602551330 is a `hidden beast` number, since 2 + 0 + 602 + 5 + 51 + 3 + 3 + 0 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 20602551294 and 20602551303.

It is not an unprimeable number, because it can be changed into a prime (20602551337) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 187086 + ... + 276054.

It is an arithmetic number, because the mean of its divisors is an integer number (582931440).

Almost surely, 2^20602551330 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20602551330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27980709120).

20602551330 is an abundant number, since it is smaller than the sum of its proper divisors (35358866910).

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

20602551330 is a wasteful number, since it uses less digits than its factorization.

20602551330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89096 (or 89093 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The spelling of 20602551330 in words is "twenty billion, six hundred two million, five hundred fifty-one thousand, three hundred thirty".