20633250406 has 16 divisors (see below), whose sum is σ = 31060064880. Its totient is φ = 10279922400.

The previous prime is 20633250403. The next prime is 20633250409. The reversal of 20633250406 is 60405233602.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20633250403) and next prime (20633250409).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20633250401) 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 7 ways as a sum of consecutive naturals, for example, 2087905 + ... + 2097763.

It is an arithmetic number, because the mean of its divisors is an integer number (1941254055).

Almost surely, 2^20633250406 is an apocalyptic number.

20633250406 is a deficient number, since it is larger than the sum of its proper divisors (10426814474).

20633250406 is a wasteful number, since it uses less digits than its factorization.

20633250406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13479.

The product of its (nonzero) digits is 25920, while the sum is 31.

The spelling of 20633250406 in words is "twenty billion, six hundred thirty-three million, two hundred fifty thousand, four hundred six".