20660037696 has 189 divisors, whose sum is σ = 60895531879. Its totient is φ = 6696947712.

The previous prime is 20660037683. The next prime is 20660037709. The reversal of 20660037696 is 69673006602.

The square root of 20660037696 is 143736.

It is a perfect power (a square), and thus also a powerful number.

20660037696 is a `hidden beast` number, since 2 + 0 + 6 + 600 + 37 + 6 + 9 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (20660037683) and next prime (20660037709).

It can be written as a sum of positive squares in 4 ways, for example, as 3488556096 + 17171481600 = 59064^2 + 131040^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 182832136 + ... + 182832248.

Almost surely, 2^20660037696 is an apocalyptic number.

20660037696 is the 143736-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20660037696

20660037696 is an abundant number, since it is smaller than the sum of its proper divisors (40235494183).

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

20660037696 is an equidigital number, since it uses as much as digits as its factorization.

20660037696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350 (or 171 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 45.

The spelling of 20660037696 in words is "twenty billion, six hundred sixty million, thirty-seven thousand, six hundred ninety-six".