20208808268 has 96 divisors (see below), whose sum is σ = 40287421440. Its totient is φ = 8790312960.

The previous prime is 20208808261. The next prime is 20208808273. The reversal of 20208808268 is 86280880202.

It is a super-2 number, since 2×20208808268² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is not an unprimeable number, because it can be changed into a prime (20208808261) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21752828 + ... + 21753756.

It is an arithmetic number, because the mean of its divisors is an integer number (419660640).

Almost surely, 2^20208808268 is an apocalyptic number.

It is an amenable number.

20208808268 is a deficient number, since it is larger than the sum of its proper divisors (20078613172).

20208808268 is a wasteful number, since it uses less digits than its factorization.

20208808268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1215 (or 1213 counting only the distinct ones).

The product of its (nonzero) digits is 196608, while the sum is 44.

The spelling of 20208808268 in words is "twenty billion, two hundred eight million, eight hundred eight thousand, two hundred sixty-eight".