646067126 has 16 divisors (see below), whose sum is σ = 979528704. Its totient is φ = 319576104.

The previous prime is 646067117. The next prime is 646067137. The reversal of 646067126 is 621760646.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 646067126.

It is a congruent 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, 68255 + ... + 77141.

It is an arithmetic number, because the mean of its divisors is an integer number (61220544).

Almost surely, 2^646067126 is an apocalyptic number.

646067126 is a deficient number, since it is larger than the sum of its proper divisors (333461578).

646067126 is a wasteful number, since it uses less digits than its factorization.

646067126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9275.

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 646067126 is about 25417.8505385487. The cubic root of 646067126 is about 864.4884881628.

The spelling of 646067126 in words is "six hundred forty-six million, sixty-seven thousand, one hundred twenty-six".