20296637670 has 32 divisors (see below), whose sum is σ = 48716593632. Its totient is φ = 5411918592.

The previous prime is 20296637629. The next prime is 20296637687. The reversal of 20296637670 is 7673669202.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 366954 + ... + 418626.

It is an arithmetic number, because the mean of its divisors is an integer number (1522393551).

Almost surely, 2^20296637670 is an apocalyptic number.

20296637670 is an abundant number, since it is smaller than the sum of its proper divisors (28419955962).

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

20296637670 is a wasteful number, since it uses less digits than its factorization.

20296637670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64776.

The product of its (nonzero) digits is 1143072, while the sum is 48.

The spelling of 20296637670 in words is "twenty billion, two hundred ninety-six million, six hundred thirty-seven thousand, six hundred seventy".