2164435064626 has 16 divisors (see below), whose sum is σ = 3263046178968. Its totient is φ = 1076765788800.

The previous prime is 2164435064609. The next prime is 2164435064629. The reversal of 2164435064626 is 6264605344612.

It can be written as a sum of positive squares in 4 ways, for example, as 942307025625 + 1222128039001 = 970725^2 + 1105499^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2164435064626.

It is not an unprimeable number, because it can be changed into a prime (2164435064629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2856865 + ... + 3534196.

Almost surely, 2^{2164435064626} is an apocalyptic number.

2164435064626 is a deficient number, since it is larger than the sum of its proper divisors (1098611114342).

2164435064626 is a wasteful number, since it uses less digits than its factorization.

2164435064626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6391917.

The product of its (nonzero) digits is 4976640, while the sum is 49.

The spelling of 2164435064626 in words is "two trillion, one hundred sixty-four billion, four hundred thirty-five million, sixty-four thousand, six hundred twenty-six".