20701611100 has 36 divisors (see below), whose sum is σ = 44958450600. Its totient is φ = 8274016960.

The previous prime is 20701611097. The next prime is 20701611103. The reversal of 20701611100 is 111610702.

It is an interprime number because it is at equal distance from previous prime (20701611097) and next prime (20701611103).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20701611103) 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, 43686 + ... + 208114.

It is an arithmetic number, because the mean of its divisors is an integer number (1248845850).

Almost surely, 2^20701611100 is an apocalyptic number.

20701611100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20701611100 is an abundant number, since it is smaller than the sum of its proper divisors (24256839500).

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

20701611100 is a wasteful number, since it uses less digits than its factorization.

20701611100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165702 (or 165695 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 19.

The spelling of 20701611100 in words is "twenty billion, seven hundred one million, six hundred eleven thousand, one hundred".