20620841135 has 32 divisors (see below), whose sum is σ = 26843192640. Its totient is φ = 15146385408.

The previous prime is 20620841099. The next prime is 20620841141. The reversal of 20620841135 is 53114802602.

It is a cyclic number.

It is not a de Polignac number, because 20620841135 - 2⁶ = 20620841071 is a prime.

It is a super-2 number, since 2×20620841135² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3392459 + ... + 3398531.

It is an arithmetic number, because the mean of its divisors is an integer number (838849770).

Almost surely, 2^20620841135 is an apocalyptic number.

20620841135 is a deficient number, since it is larger than the sum of its proper divisors (6222351505).

20620841135 is a wasteful number, since it uses less digits than its factorization.

20620841135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7067.

The product of its (nonzero) digits is 11520, while the sum is 32.

The spelling of 20620841135 in words is "twenty billion, six hundred twenty million, eight hundred forty-one thousand, one hundred thirty-five".