20477701055 has 8 divisors (see below), whose sum is σ = 28083704352. Its totient is φ = 14041852128.

The previous prime is 20477701039. The next prime is 20477701063. The reversal of 20477701055 is 55010777402.

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 20477701055 - 2⁴ = 20477701039 is a prime.

It is a super-3 number, since 3×20477701055³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 292538552 + ... + 292538621.

It is an arithmetic number, because the mean of its divisors is an integer number (3510463044).

Almost surely, 2^20477701055 is an apocalyptic number.

20477701055 is a deficient number, since it is larger than the sum of its proper divisors (7606003297).

20477701055 is an equidigital number, since it uses as much as digits as its factorization.

20477701055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 585077185.

The product of its (nonzero) digits is 68600, while the sum is 38.

The spelling of 20477701055 in words is "twenty billion, four hundred seventy-seven million, seven hundred one thousand, fifty-five".