63741166321 has 6 divisors (see below), whose sum is σ = 74147887410. Its totient is φ = 54635285376.

The previous prime is 63741166301. The next prime is 63741166361. The reversal of 63741166321 is 12366114736.

63741166321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 36039225600 + 27701940721 = 189840^2 + 166439^2 .

It is not a de Polignac number, because 63741166321 - 2⁵ = 63741166289 is a prime.

It is a super-2 number, since 2×63741166321² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63741166301) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 650420016 + ... + 650420113.

It is an arithmetic number, because the mean of its divisors is an integer number (12357981235).

Almost surely, 2^63741166321 is an apocalyptic number.

It is an amenable number.

63741166321 is a deficient number, since it is larger than the sum of its proper divisors (10406721089).

63741166321 is a wasteful number, since it uses less digits than its factorization.

63741166321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1300840143 (or 1300840136 counting only the distinct ones).

The product of its digits is 108864, while the sum is 40.

The spelling of 63741166321 in words is "sixty-three billion, seven hundred forty-one million, one hundred sixty-six thousand, three hundred twenty-one".