20320836755 has 8 divisors (see below), whose sum is σ = 24608720400. Its totient is φ = 16107525216.

The previous prime is 20320836749. The next prime is 20320836773. The reversal of 20320836755 is 55763802302.

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 20320836755 - 2¹² = 20320832659 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18642425 + ... + 18643514.

It is an arithmetic number, because the mean of its divisors is an integer number (3076090050).

Almost surely, 2^20320836755 is an apocalyptic number.

20320836755 is a deficient number, since it is larger than the sum of its proper divisors (4287883645).

20320836755 is a wasteful number, since it uses less digits than its factorization.

20320836755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37286053.

The product of its (nonzero) digits is 302400, while the sum is 41.

The spelling of 20320836755 in words is "twenty billion, three hundred twenty million, eight hundred thirty-six thousand, seven hundred fifty-five".