20761737055 has 8 divisors (see below), whose sum is σ = 24951107952. Its totient is φ = 16584707328.

The previous prime is 20761737049. The next prime is 20761737077. The reversal of 20761737055 is 55073716702.

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 20761737055 - 2³ = 20761737047 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, 3081589 + ... + 3088318.

It is an arithmetic number, because the mean of its divisors is an integer number (3118888494).

Almost surely, 2^20761737055 is an apocalyptic number.

20761737055 is a deficient number, since it is larger than the sum of its proper divisors (4189370897).

20761737055 is an equidigital number, since it uses as much as digits as its factorization.

20761737055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6170585.

The product of its (nonzero) digits is 308700, while the sum is 43.

The spelling of 20761737055 in words is "twenty billion, seven hundred sixty-one million, seven hundred thirty-seven thousand, fifty-five".