20107291600 has 60 divisors (see below), whose sum is σ = 52699394880. Its totient is φ = 7311740800.

The previous prime is 20107291583. The next prime is 20107291601. The reversal of 20107291600 is 619270102.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20107291601) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2280520 + ... + 2289319.

It is an arithmetic number, because the mean of its divisors is an integer number (878323248).

Almost surely, 2^20107291600 is an apocalyptic number.

20107291600 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20107291600 is an abundant number, since it is smaller than the sum of its proper divisors (32592103280).

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

20107291600 is a wasteful number, since it uses less digits than its factorization.

20107291600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4569868 (or 4569857 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 28.

The spelling of 20107291600 in words is "twenty billion, one hundred seven million, two hundred ninety-one thousand, six hundred".