21168280083076 has 48 divisors (see below), whose sum is σ = 44736486359040. Its totient is φ = 8567835962400.

The previous prime is 21168280083047. The next prime is 21168280083121. The reversal of 21168280083076 is 67038008286112.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 207987100 + ... + 208088851.

It is an arithmetic number, because the mean of its divisors is an integer number (932010132480).

Almost surely, 2^{21168280083076} is an apocalyptic number.

It is an amenable number.

21168280083076 is an abundant number, since it is smaller than the sum of its proper divisors (23568206275964).

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

21168280083076 is a wasteful number, since it uses less digits than its factorization.

21168280083076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416076064 (or 416076062 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 52.

The spelling of 21168280083076 in words is "twenty-one trillion, one hundred sixty-eight billion, two hundred eighty million, eighty-three thousand, seventy-six".