2165583014464 has 21 divisors (see below), whose sum is σ = 4297352155977. Its totient is φ = 1082785620864.

The previous prime is 2165583014401. The next prime is 2165583014471. The reversal of 2165583014464 is 4644103855612.

The square root of 2165583014464 is 1471592.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 745100428864 + 1420482585600 = 863192^2 + 1191840^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 11680762 + ... + 11864710.

Almost surely, 2^{2165583014464} is an apocalyptic number.

2165583014464 is the 1471592-nd square number.

It is an amenable number.

2165583014464 is a deficient number, since it is larger than the sum of its proper divisors (2131769141513).

2165583014464 is an frugal number, since it uses more digits than its factorization.

2165583014464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367910 (or 183951 counting only the distinct ones).

The product of its (nonzero) digits is 2764800, while the sum is 49.

Multiplying 2165583014464 by its sum of digits (49), we get a square (106113567708736 = 10301144²).

The spelling of 2165583014464 in words is "two trillion, one hundred sixty-five billion, five hundred eighty-three million, fourteen thousand, four hundred sixty-four".