63640206164026 has 16 divisors (see below), whose sum is σ = 96068980817280. Its totient is φ = 31617215276400.

The previous prime is 63640206163987. The next prime is 63640206164053. The reversal of 63640206164026 is 62046160204636.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52958835 + ... + 54147193.

It is an arithmetic number, because the mean of its divisors is an integer number (6004311301080).

Almost surely, 2^{63640206164026} is an apocalyptic number.

63640206164026 is a deficient number, since it is larger than the sum of its proper divisors (32428774653254).

63640206164026 is a wasteful number, since it uses less digits than its factorization.

63640206164026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1359069.

The product of its (nonzero) digits is 1492992, while the sum is 46.

The spelling of 63640206164026 in words is "sixty-three trillion, six hundred forty billion, two hundred six million, one hundred sixty-four thousand, twenty-six".