2640162044403 has 12 divisors (see below), whose sum is σ = 4106918735920. Its totient is φ = 1624715104176.

The previous prime is 2640162044383. The next prime is 2640162044419. The reversal of 2640162044403 is 3044402610462.

2640162044403 is a `hidden beast` number, since 2 + 6 + 4 + 0 + 1 + 6 + 204 + 440 + 3 = 666.

It is not a de Polignac number, because 2640162044403 - 2⁵ = 2640162044371 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2640162044603) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11282743663 + ... + 11282743896.

Almost surely, 2^{2640162044403} is an apocalyptic number.

2640162044403 is a deficient number, since it is larger than the sum of its proper divisors (1466756691517).

2640162044403 is a wasteful number, since it uses less digits than its factorization.

2640162044403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22565487578 (or 22565487575 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 36.

Adding to 2640162044403 its reverse (3044402610462), we get a palindrome (5684564654865).

The spelling of 2640162044403 in words is "two trillion, six hundred forty billion, one hundred sixty-two million, forty-four thousand, four hundred three".