61120207065 has 16 divisors (see below), whose sum is σ = 98760574656. Its totient is φ = 32274696000.

The previous prime is 61120206991. The next prime is 61120207079. The reversal of 61120207065 is 56070202116.

61120207065 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 61120207065 - 2⁷ = 61120206937 is a prime.

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, 20170171 + ... + 20173200.

It is an arithmetic number, because the mean of its divisors is an integer number (6172535916).

Almost surely, 2^61120207065 is an apocalyptic number.

It is an amenable number.

61120207065 is a deficient number, since it is larger than the sum of its proper divisors (37640367591).

61120207065 is a wasteful number, since it uses less digits than its factorization.

61120207065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40343480.

The product of its (nonzero) digits is 5040, while the sum is 30.

The spelling of 61120207065 in words is "sixty-one billion, one hundred twenty million, two hundred seven thousand, sixty-five".