20371101696 has 384 divisors, whose sum is σ = 66657427200. Its totient is φ = 6095831040.

The previous prime is 20371101691. The next prime is 20371101697. The reversal of 20371101696 is 69610117302.

It is a tau number, because it is divible by the number of its divisors (384).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 20371101696.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20371101691) 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, 65083236 + ... + 65083548.

It is an arithmetic number, because the mean of its divisors is an integer number (173587050).

Almost surely, 2^20371101696 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20371101696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33328713600).

20371101696 is an abundant number, since it is smaller than the sum of its proper divisors (46286325504).

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

20371101696 is a wasteful number, since it uses less digits than its factorization.

20371101696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462 (or 436 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

Adding to 20371101696 its reverse (69610117302), we get a palindrome (89981218998).

The spelling of 20371101696 in words is "twenty billion, three hundred seventy-one million, one hundred one thousand, six hundred ninety-six".