2664544464434 has 16 divisors (see below), whose sum is σ = 4065861773400. Its totient is φ = 1309295093760.

The previous prime is 2664544464433. The next prime is 2664544464467. The reversal of 2664544464434 is 4344644454662.

It can be written as a sum of positive squares in 4 ways, for example, as 1194861051409 + 1469683413025 = 1093097^2 + 1212305^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2664544464434.

It is not an unprimeable number, because it can be changed into a prime (2664544464433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9330509 + ... + 9611840.

Almost surely, 2^{2664544464434} is an apocalyptic number.

2664544464434 is a deficient number, since it is larger than the sum of its proper divisors (1401317308966).

2664544464434 is a wasteful number, since it uses less digits than its factorization.

2664544464434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18943565.

The product of its digits is 106168320, while the sum is 56.

The spelling of 2664544464434 in words is "two trillion, six hundred sixty-four billion, five hundred forty-four million, four hundred sixty-four thousand, four hundred thirty-four".