61010166580 has 96 divisors (see below), whose sum is σ = 142601316480. Its totient is φ = 21738362880.

The previous prime is 61010166527. The next prime is 61010166583. The reversal of 61010166580 is 8566101016.

61010166580 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×61010166580² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61010166583) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4055232 + ... + 4070248.

It is an arithmetic number, because the mean of its divisors is an integer number (1485430380).

Almost surely, 2^61010166580 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61010166580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71300658240).

61010166580 is an abundant number, since it is smaller than the sum of its proper divisors (81591149900).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61010166580 is a wasteful number, since it uses less digits than its factorization.

61010166580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15409 (or 15407 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 34.

Adding to 61010166580 its reverse (8566101016), we get a palindrome (69576267596).

The spelling of 61010166580 in words is "sixty-one billion, ten million, one hundred sixty-six thousand, five hundred eighty".