20096915040 has 144 divisors (see below), whose sum is σ = 69247065888. Its totient is φ = 5307107328.

The previous prime is 20096914979. The next prime is 20096915063. The reversal of 20096915040 is 4051969002.

It is a tau number, because it is divible by the number of its divisors (144).

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

It is a junction number, because it is equal to n+sod(n) for n = 20096914986 and 20096915004.

It is a congruent number.

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, 80572 + ... + 216068.

It is an arithmetic number, because the mean of its divisors is an integer number (480882402).

Almost surely, 2^20096915040 is an apocalyptic number.

20096915040 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 20096915040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34623532944).

20096915040 is an abundant number, since it is smaller than the sum of its proper divisors (49150150848).

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

20096915040 is a wasteful number, since it uses less digits than its factorization.

20096915040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135621 (or 135610 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The spelling of 20096915040 in words is "twenty billion, ninety-six million, nine hundred fifteen thousand, forty".