61066724164 has 12 divisors (see below), whose sum is σ = 108330696124. Its totient is φ = 30115096704.

The previous prime is 61066724153. The next prime is 61066724167. The reversal of 61066724164 is 46142766016.

61066724164 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 2 ways, for example, as 44112600900 + 16954123264 = 210030^2 + 130208^2 .

It is a super-2 number, since 2×61066724164² (a number of 22 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 61066724164.

It is not an unprimeable number, because it can be changed into a prime (61066724167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104566017 + ... + 104566600.

Almost surely, 2^61066724164 is an apocalyptic number.

It is an amenable number.

61066724164 is a deficient number, since it is larger than the sum of its proper divisors (47263971960).

61066724164 is a wasteful number, since it uses less digits than its factorization.

61066724164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209132694 (or 209132692 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 43.

The spelling of 61066724164 in words is "sixty-one billion, sixty-six million, seven hundred twenty-four thousand, one hundred sixty-four".