2066544464 has 20 divisors (see below), whose sum is σ = 4008785460. Its totient is φ = 1032019200.

The previous prime is 2066544433. The next prime is 2066544509. The reversal of 2066544464 is 4644456602.

It can be written as a sum of positive squares in 2 ways, for example, as 683299600 + 1383244864 = 26140^2 + 37192^2 .

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 64637 + ... + 91164.

It is an arithmetic number, because the mean of its divisors is an integer number (200439273).

Almost surely, 2^2066544464 is an apocalyptic number.

It is an amenable number.

2066544464 is a deficient number, since it is larger than the sum of its proper divisors (1942240996).

2066544464 is a wasteful number, since it uses less digits than its factorization.

2066544464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156638 (or 156632 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 41.

The square root of 2066544464 is about 45459.2615866118. The cubic root of 2066544464 is about 1273.7423382672.

The spelling of 2066544464 in words is "two billion, sixty-six million, five hundred forty-four thousand, four hundred sixty-four".