61160028980 has 12 divisors (see below), whose sum is σ = 128436060900. Its totient is φ = 24464011584.

The previous prime is 61160028973. The next prime is 61160028997. The reversal of 61160028980 is 8982006116.

It can be written as a sum of positive squares in 2 ways, for example, as 33728057104 + 27431971876 = 183652^2 + 165626^2 .

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1529000705 + ... + 1529000744.

It is an arithmetic number, because the mean of its divisors is an integer number (10703005075).

Almost surely, 2^61160028980 is an apocalyptic number.

It is an amenable number.

61160028980 is an abundant number, since it is smaller than the sum of its proper divisors (67276031920).

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

61160028980 is a wasteful number, since it uses less digits than its factorization.

61160028980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3058001458 (or 3058001456 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 41.

The spelling of 61160028980 in words is "sixty-one billion, one hundred sixty million, twenty-eight thousand, nine hundred eighty".