20100717702 has 80 divisors (see below), whose sum is σ = 48394199280. Its totient is φ = 6184361664.

The previous prime is 20100717701. The next prime is 20100717733. The reversal of 20100717702 is 20771700102.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20100717701) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1535778 + ... + 1548810.

It is an arithmetic number, because the mean of its divisors is an integer number (604927491).

Almost surely, 2^20100717702 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20100717702, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24197099640).

20100717702 is an abundant number, since it is smaller than the sum of its proper divisors (28293481578).

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

20100717702 is an equidigital number, since it uses as much as digits as its factorization.

20100717702 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13096 (or 13051 counting only the distinct ones).

The product of its (nonzero) digits is 1372, while the sum is 27.

Adding to 20100717702 its sum of digits (27), we get a square (20100717729 = 141777²).

The spelling of 20100717702 in words is "twenty billion, one hundred million, seven hundred seventeen thousand, seven hundred two".