20701675740 has 96 divisors (see below), whose sum is σ = 59658197760. Its totient is φ = 5361419776.

The previous prime is 20701675691. The next prime is 20701675747. The reversal of 20701675740 is 4757610702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20701675747) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 258592 + ... + 329048.

It is an arithmetic number, because the mean of its divisors is an integer number (621439560).

Almost surely, 2^20701675740 is an apocalyptic number.

20701675740 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 20701675740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29829098880).

20701675740 is an abundant number, since it is smaller than the sum of its proper divisors (38956522020).

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

20701675740 is a wasteful number, since it uses less digits than its factorization.

20701675740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70611 (or 70609 counting only the distinct ones).

The product of its (nonzero) digits is 82320, while the sum is 39.

The spelling of 20701675740 in words is "twenty billion, seven hundred one million, six hundred seventy-five thousand, seven hundred forty".