20650948377 has 16 divisors (see below), whose sum is σ = 27610409088. Its totient is φ = 13729439360.

The previous prime is 20650948369. The next prime is 20650948391. The reversal of 20650948377 is 77384905602.

It is a cyclic number.

It is not a de Polignac number, because 20650948377 - 2³ = 20650948369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20650948397) 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 15 ways as a sum of consecutive naturals, for example, 2141188 + ... + 2150810.

It is an arithmetic number, because the mean of its divisors is an integer number (1725650568).

Almost surely, 2^20650948377 is an apocalyptic number.

It is an amenable number.

20650948377 is a deficient number, since it is larger than the sum of its proper divisors (6959460711).

20650948377 is a wasteful number, since it uses less digits than its factorization.

20650948377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11520.

The product of its (nonzero) digits is 2540160, while the sum is 51.

The spelling of 20650948377 in words is "twenty billion, six hundred fifty million, nine hundred forty-eight thousand, three hundred seventy-seven".