20754754220 has 24 divisors (see below), whose sum is σ = 45087915600. Its totient is φ = 8015628992.

The previous prime is 20754754199. The next prime is 20754754243. The reversal of 20754754220 is 2245745702.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17891450 + ... + 17892609.

It is an arithmetic number, because the mean of its divisors is an integer number (1878663150).

Almost surely, 2^20754754220 is an apocalyptic number.

20754754220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20754754220 is an abundant number, since it is smaller than the sum of its proper divisors (24333161380).

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

20754754220 is a wasteful number, since it uses less digits than its factorization.

20754754220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35784097 (or 35784095 counting only the distinct ones).

The product of its (nonzero) digits is 156800, while the sum is 38.

The spelling of 20754754220 in words is "twenty billion, seven hundred fifty-four million, seven hundred fifty-four thousand, two hundred twenty".