20651700055 has 8 divisors (see below), whose sum is σ = 28322331552. Its totient is φ = 14161165728.

The previous prime is 20651700007. The next prime is 20651700071. The reversal of 20651700055 is 55000715602.

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 20651700055 - 2¹¹ = 20651698007 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 295024252 + ... + 295024321.

It is an arithmetic number, because the mean of its divisors is an integer number (3540291444).

Almost surely, 2^20651700055 is an apocalyptic number.

20651700055 is a deficient number, since it is larger than the sum of its proper divisors (7670631497).

20651700055 is an equidigital number, since it uses as much as digits as its factorization.

20651700055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 590048585.

The product of its (nonzero) digits is 10500, while the sum is 31.

The spelling of 20651700055 in words is "twenty billion, six hundred fifty-one million, seven hundred thousand, fifty-five".