2183858466564 has 12 divisors (see below), whose sum is σ = 5095669755344. Its totient is φ = 727952822184.

The previous prime is 2183858466547. The next prime is 2183858466593. The reversal of 2183858466564 is 4656648583812.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 2183858466495 and 2183858466504.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90994102762 + ... + 90994102785.

Almost surely, 2^{2183858466564} is an apocalyptic number.

It is an amenable number.

2183858466564 is an abundant number, since it is smaller than the sum of its proper divisors (2911811288780).

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

2183858466564 is a wasteful number, since it uses less digits than its factorization.

2183858466564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181988205554 (or 181988205552 counting only the distinct ones).

The product of its digits is 265420800, while the sum is 66.

The spelling of 2183858466564 in words is "two trillion, one hundred eighty-three billion, eight hundred fifty-eight million, four hundred sixty-six thousand, five hundred sixty-four".