20133456916 has 24 divisors (see below), whose sum is σ = 36778198464. Its totient is φ = 9625704000.

The previous prime is 20133456911. The next prime is 20133456923. The reversal of 20133456916 is 61965433102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20133456911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 239631 + ... + 312553.

It is an arithmetic number, because the mean of its divisors is an integer number (1532424936).

Almost surely, 2^20133456916 is an apocalyptic number.

It is an amenable number.

20133456916 is a deficient number, since it is larger than the sum of its proper divisors (16644741548).

20133456916 is a wasteful number, since it uses less digits than its factorization.

20133456916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75951 (or 75949 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 40.

The spelling of 20133456916 in words is "twenty billion, one hundred thirty-three million, four hundred fifty-six thousand, nine hundred sixteen".