20620601100 has 108 divisors (see below), whose sum is σ = 70509992280. Its totient is φ = 4998931200.

The previous prime is 20620601087. The next prime is 20620601107. The reversal of 20620601100 is 110602602.

It is a happy number.

20620601100 is a `hidden beast` number, since 2 + 0 + 62 + 0 + 601 + 1 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (20620601107) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1031545 + ... + 1051344.

Almost surely, 2^20620601100 is an apocalyptic number.

20620601100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20620601100 is an abundant number, since it is smaller than the sum of its proper divisors (49889391180).

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

20620601100 is a wasteful number, since it uses less digits than its factorization.

20620601100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2082920 (or 2082910 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The spelling of 20620601100 in words is "twenty billion, six hundred twenty million, six hundred one thousand, one hundred".