20901116 has 12 divisors (see below), whose sum is σ = 36988560. Its totient is φ = 10332960.

The previous prime is 20901113. The next prime is 20901151. The reversal of 20901116 is 61110902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20901113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29000 + ... + 29711.

It is an arithmetic number, because the mean of its divisors is an integer number (3082380).

Almost surely, 2^20901116 is an apocalyptic number.

It is an amenable number.

20901116 is a deficient number, since it is larger than the sum of its proper divisors (16087444).

20901116 is a wasteful number, since it uses less digits than its factorization.

20901116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58804 (or 58802 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 20.

The square root of 20901116 is about 4571.7738351760. The cubic root of 20901116 is about 275.4586989294.

The spelling of 20901116 in words is "twenty million, nine hundred one thousand, one hundred sixteen".