641446034312061 has 36 divisors (see below), whose sum is σ = 1018691106634656. Its totient is φ = 388651969619760.

The previous prime is 641446034312059. The next prime is 641446034312093. The reversal of 641446034312061 is 160213430644146.

641446034312061 is a `hidden beast` number, since 6 + 4 + 1 + 4 + 4 + 6 + 0 + 3 + 431 + 206 + 1 = 666.

It is not a de Polignac number, because 641446034312061 - 2¹ = 641446034312059 is a prime.

It is a super-2 number, since 2×641446034312061² (a number of 30 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 641446034311998 and 641446034312016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641446034312051) 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 35 ways as a sum of consecutive naturals, for example, 74079711 + ... + 82284236.

It is an arithmetic number, because the mean of its divisors is an integer number (28296975184296).

Almost surely, 2^{641446034312061} is an apocalyptic number.

It is an amenable number.

641446034312061 is a deficient number, since it is larger than the sum of its proper divisors (377245072322595).

641446034312061 is a wasteful number, since it uses less digits than its factorization.

641446034312061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156367742 (or 156367728 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 45.

The spelling of 641446034312061 in words is "six hundred forty-one trillion, four hundred forty-six billion, thirty-four million, three hundred twelve thousand, sixty-one".