264406620002164 has 6 divisors (see below), whose sum is σ = 462711585003794. Its totient is φ = 132203310001080.

The previous prime is 264406620002153. The next prime is 264406620002201. The reversal of 264406620002164 is 461200026604462.

It can be written as a sum of positive squares in only one way, i.e., 182300223459600 + 82106396542564 = 13501860^2 + 9061258^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 264406620002164.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33050827500267 + ... + 33050827500274.

Almost surely, 2^{264406620002164} is an apocalyptic number.

It is an amenable number.

264406620002164 is a deficient number, since it is larger than the sum of its proper divisors (198304965001630).

264406620002164 is a wasteful number, since it uses less digits than its factorization.

264406620002164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66101655000545 (or 66101655000543 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 43.

The spelling of 264406620002164 in words is "two hundred sixty-four trillion, four hundred six billion, six hundred twenty million, two thousand, one hundred sixty-four".