20709007832633 has 8 divisors (see below), whose sum is σ = 20897299668168. Its totient is φ = 20520804177664.

The previous prime is 20709007832609. The next prime is 20709007832699. The reversal of 20709007832633 is 33623870090702.

It can be written as a sum of positive squares in 4 ways, for example, as 1622839044649 + 19086168787984 = 1273907^2 + 4368772^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20709007832633 - 2²⁰ = 20709006784057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20709007837633) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21573266 + ... + 22512747.

It is an arithmetic number, because the mean of its divisors is an integer number (2612162458521).

Almost surely, 2^{20709007832633} is an apocalyptic number.

It is an amenable number.

20709007832633 is a deficient number, since it is larger than the sum of its proper divisors (188291835535).

20709007832633 is a wasteful number, since it uses less digits than its factorization.

20709007832633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44090283.

The product of its (nonzero) digits is 2286144, while the sum is 50.

The spelling of 20709007832633 in words is "twenty trillion, seven hundred nine billion, seven million, eight hundred thirty-two thousand, six hundred thirty-three".