61155101075 has 6 divisors (see below), whose sum is σ = 75832325364. Its totient is φ = 48924080840.

The previous prime is 61155100999. The next prime is 61155101087. The reversal of 61155101075 is 57010155116.

It is not a de Polignac number, because 61155101075 - 2²⁴ = 61138323859 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 1223101997 + ... + 1223102046.

It is an arithmetic number, because the mean of its divisors is an integer number (12638720894).

Almost surely, 2^61155101075 is an apocalyptic number.

61155101075 is a deficient number, since it is larger than the sum of its proper divisors (14677224289).

61155101075 is a wasteful number, since it uses less digits than its factorization.

61155101075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2446204053 (or 2446204048 counting only the distinct ones).

The product of its (nonzero) digits is 5250, while the sum is 32.

The spelling of 61155101075 in words is "sixty-one billion, one hundred fifty-five million, one hundred one thousand, seventy-five".