20922382965 has 16 divisors (see below), whose sum is σ = 36519068736. Its totient is φ = 10144185600.

The previous prime is 20922382961. The next prime is 20922382973. The reversal of 20922382965 is 56928322902.

It is not a de Polignac number, because 20922382965 - 2² = 20922382961 is a prime.

It is a super-2 number, since 2×20922382965² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20922382961) 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, 63400996 + ... + 63401325.

It is an arithmetic number, because the mean of its divisors is an integer number (2282441796).

Almost surely, 2^20922382965 is an apocalyptic number.

It is an amenable number.

20922382965 is a deficient number, since it is larger than the sum of its proper divisors (15596685771).

20922382965 is a wasteful number, since it uses less digits than its factorization.

20922382965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126802340.

The product of its (nonzero) digits is 933120, while the sum is 48.

The spelling of 20922382965 in words is "twenty billion, nine hundred twenty-two million, three hundred eighty-two thousand, nine hundred sixty-five".