21960000396036 has 18 divisors (see below), whose sum is σ = 55510001001182. Its totient is φ = 7320000132000.

The previous prime is 21960000396017. The next prime is 21960000396067. The reversal of 21960000396036 is 63069300006912.

It is a happy number.

21960000396036 is a `hidden beast` number, since 2 + 1 + 9 + 6 + 0 + 0 + 0 + 0 + 39 + 603 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 15702278012100 + 6257722383936 = 3962610^2 + 2501544^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a junction number, because it is equal to n+sod(n) for n = 21960000395982 and 21960000396000.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 305000005465 + ... + 305000005536.

Almost surely, 2^{21960000396036} is an apocalyptic number.

It is an amenable number.

21960000396036 is an abundant number, since it is smaller than the sum of its proper divisors (33550000605146).

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

21960000396036 is a wasteful number, since it uses less digits than its factorization.

21960000396036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 610000011011 (or 610000011006 counting only the distinct ones).

The product of its (nonzero) digits is 314928, while the sum is 45.

The spelling of 21960000396036 in words is "twenty-one trillion, nine hundred sixty billion, three hundred ninety-six thousand, thirty-six".