20701210700 has 72 divisors (see below), whose sum is σ = 45428082000. Its totient is φ = 8187644160.

The previous prime is 20701210669. The next prime is 20701210723. The reversal of 20701210700 is 701210702.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3409067 + ... + 3415133.

Almost surely, 2^20701210700 is an apocalyptic number.

20701210700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20701210700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22714041000).

20701210700 is an abundant number, since it is smaller than the sum of its proper divisors (24726871300).

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

20701210700 is a wasteful number, since it uses less digits than its factorization.

20701210700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6459 (or 6452 counting only the distinct ones).

The product of its (nonzero) digits is 196, while the sum is 20.

It can be divided in two parts, 207012 and 10700, that added together give a palindrome (217712).

The spelling of 20701210700 in words is "twenty billion, seven hundred one million, two hundred ten thousand, seven hundred".