61158081760 has 24 divisors (see below), whose sum is σ = 144485968536. Its totient is φ = 24463232640.

The previous prime is 61158081737. The next prime is 61158081769. The reversal of 61158081760 is 6718085116.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61158081769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 191118846 + ... + 191119165.

It is an arithmetic number, because the mean of its divisors is an integer number (6020248689).

Almost surely, 2^61158081760 is an apocalyptic number.

It is an amenable number.

61158081760 is an abundant number, since it is smaller than the sum of its proper divisors (83327886776).

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

61158081760 is a wasteful number, since it uses less digits than its factorization.

61158081760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382238026 (or 382238018 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 43.

The spelling of 61158081760 in words is "sixty-one billion, one hundred fifty-eight million, eighty-one thousand, seven hundred sixty".