20183616672 has 48 divisors (see below), whose sum is σ = 52989314112. Its totient is φ = 6726942720.

The previous prime is 20183616667. The next prime is 20183616683. The reversal of 20183616672 is 27661638102.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-3 number, since 3×20183616672³ (a number of 32 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1306272 + ... + 1321632.

It is an arithmetic number, because the mean of its divisors is an integer number (1103944044).

Almost surely, 2^20183616672 is an apocalyptic number.

It is an amenable number.

20183616672 is an abundant number, since it is smaller than the sum of its proper divisors (32805697440).

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

20183616672 is a wasteful number, since it uses less digits than its factorization.

20183616672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29061 (or 29053 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 42.

The spelling of 20183616672 in words is "twenty billion, one hundred eighty-three million, six hundred sixteen thousand, six hundred seventy-two".