20710590845 has 64 divisors (see below), whose sum is σ = 30210693120. Its totient is φ = 13330157568.

The previous prime is 20710590809. The next prime is 20710590847. The reversal of 20710590845 is 54809501702.

It is not a de Polignac number, because 20710590845 - 2²⁸ = 20442155389 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20710590847) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6077132 + ... + 6080538.

It is an arithmetic number, because the mean of its divisors is an integer number (472042080).

Almost surely, 2^20710590845 is an apocalyptic number.

It is an amenable number.

20710590845 is a deficient number, since it is larger than the sum of its proper divisors (9500102275).

20710590845 is a wasteful number, since it uses less digits than its factorization.

20710590845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3614.

The product of its (nonzero) digits is 100800, while the sum is 41.

The spelling of 20710590845 in words is "twenty billion, seven hundred ten million, five hundred ninety thousand, eight hundred forty-five".