20550367077 has 24 divisors (see below), whose sum is σ = 28477238112. Its totient is φ = 13181343840.

The previous prime is 20550367049. The next prime is 20550367133. The reversal of 20550367077 is 77076305502.

It is not a de Polignac number, because 20550367077 - 2¹² = 20550362981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20550367027) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 478158 + ... + 519360.

It is an arithmetic number, because the mean of its divisors is an integer number (1186551588).

Almost surely, 2^20550367077 is an apocalyptic number.

It is an amenable number.

20550367077 is a deficient number, since it is larger than the sum of its proper divisors (7926871035).

20550367077 is a wasteful number, since it uses less digits than its factorization.

20550367077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41441 (or 41410 counting only the distinct ones).

The product of its (nonzero) digits is 308700, while the sum is 42.

The spelling of 20550367077 in words is "twenty billion, five hundred fifty million, three hundred sixty-seven thousand, seventy-seven".