20676077655 has 32 divisors (see below), whose sum is σ = 34237762560. Its totient is φ = 10642235520.

The previous prime is 20676077621. The next prime is 20676077659. The reversal of 20676077655 is 55677067602.

It is not a de Polignac number, because 20676077655 - 2⁹ = 20676077143 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20676077598 and 20676077607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20676077659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1096860 + ... + 1115550.

It is an arithmetic number, because the mean of its divisors is an integer number (1069930080).

Almost surely, 2^20676077655 is an apocalyptic number.

20676077655 is a deficient number, since it is larger than the sum of its proper divisors (13561684905).

20676077655 is a wasteful number, since it uses less digits than its factorization.

20676077655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21271.

The product of its (nonzero) digits is 3704400, while the sum is 51.

The spelling of 20676077655 in words is "twenty billion, six hundred seventy-six million, seventy-seven thousand, six hundred fifty-five".