2640663016122 has 64 divisors (see below), whose sum is σ = 5480785296000. Its totient is φ = 847518140160.

The previous prime is 2640663016091. The next prime is 2640663016157. The reversal of 2640663016122 is 2216103660462.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8749597 + ... + 9046367.

It is an arithmetic number, because the mean of its divisors is an integer number (85637270250).

Almost surely, 2^{2640663016122} is an apocalyptic number.

2640663016122 is an abundant number, since it is smaller than the sum of its proper divisors (2840122279878).

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

2640663016122 is a wasteful number, since it uses less digits than its factorization.

2640663016122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297231.

The product of its (nonzero) digits is 124416, while the sum is 39.

Adding to 2640663016122 its reverse (2216103660462), we get a palindrome (4856766676584).

The spelling of 2640663016122 in words is "two trillion, six hundred forty billion, six hundred sixty-three million, sixteen thousand, one hundred twenty-two".