20469152068 has 24 divisors (see below), whose sum is σ = 36988931840. Its totient is φ = 9901107360.

The previous prime is 20469152063. The next prime is 20469152071. The reversal of 20469152068 is 86025196402.

It is not an unprimeable number, because it can be changed into a prime (20469152063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 366118 + ... + 418306.

Almost surely, 2^20469152068 is an apocalyptic number.

It is an amenable number.

20469152068 is a deficient number, since it is larger than the sum of its proper divisors (16519779772).

20469152068 is a wasteful number, since it uses less digits than its factorization.

20469152068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55387 (or 55385 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 43.

The spelling of 20469152068 in words is "twenty billion, four hundred sixty-nine million, one hundred fifty-two thousand, sixty-eight".