20706097896 has 144 divisors (see below), whose sum is σ = 62114532480. Its totient is φ = 6226334400.

The previous prime is 20706097877. The next prime is 20706097901. The reversal of 20706097896 is 69879060702.

20706097896 is a `hidden beast` number, since 20 + 7 + 0 + 609 + 7 + 8 + 9 + 6 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1132201 + ... + 1150343.

It is an arithmetic number, because the mean of its divisors is an integer number (431350920).

Almost surely, 2^20706097896 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 20706097896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31057266240).

20706097896 is an abundant number, since it is smaller than the sum of its proper divisors (41408434584).

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

20706097896 is a wasteful number, since it uses less digits than its factorization.

20706097896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18308 (or 18290 counting only the distinct ones).

The product of its (nonzero) digits is 2286144, while the sum is 54.

The spelling of 20706097896 in words is "twenty billion, seven hundred six million, ninety-seven thousand, eight hundred ninety-six".