20100022008 has 32 divisors (see below), whose sum is σ = 54818242560. Its totient is φ = 6090915680.

The previous prime is 20100021983. The next prime is 20100022009. The reversal of 20100022008 is 80022000102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20100022009) 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, 38067960 + ... + 38068487.

It is an arithmetic number, because the mean of its divisors is an integer number (1713070080).

Almost surely, 2^20100022008 is an apocalyptic number.

It is an amenable number.

20100022008 is an abundant number, since it is smaller than the sum of its proper divisors (34718220552).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20100022008 is a wasteful number, since it uses less digits than its factorization.

20100022008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76136467 (or 76136463 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The spelling of 20100022008 in words is "twenty billion, one hundred million, twenty-two thousand, eight".