61115500005 has 16 divisors (see below), whose sum is σ = 111754057344. Its totient is φ = 27938514240.

The previous prime is 61115499961. The next prime is 61115500037. The reversal of 61115500005 is 50000551116.

61115500005 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 61115500005 - 2⁶ = 61115499941 is a prime.

It is a super-2 number, since 2×61115500005² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 291026086 + ... + 291026295.

It is an arithmetic number, because the mean of its divisors is an integer number (6984628584).

Almost surely, 2^61115500005 is an apocalyptic number.

It is an amenable number.

61115500005 is a deficient number, since it is larger than the sum of its proper divisors (50638557339).

61115500005 is a wasteful number, since it uses less digits than its factorization.

61115500005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 582052396.

The product of its (nonzero) digits is 750, while the sum is 24.

The spelling of 61115500005 in words is "sixty-one billion, one hundred fifteen million, five hundred thousand, five".