61116385 has 16 divisors (see below), whose sum is σ = 80600832. Its totient is φ = 44118400.

The previous prime is 61116379. The next prime is 61116401. The reversal of 61116385 is 58361116.

It is not a de Polignac number, because 61116385 - 2⁵ = 61116353 is a prime.

It is a Duffinian 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, 3480 + ... + 11590.

It is an arithmetic number, because the mean of its divisors is an integer number (5037552).

Almost surely, 2^61116385 is an apocalyptic number.

It is an amenable number.

61116385 is a deficient number, since it is larger than the sum of its proper divisors (19484447).

61116385 is a wasteful number, since it uses less digits than its factorization.

61116385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8264.

The product of its digits is 4320, while the sum is 31.

The square root of 61116385 is about 7817.6969114951. The cubic root of 61116385 is about 393.8999140248.

The spelling of 61116385 in words is "sixty-one million, one hundred sixteen thousand, three hundred eighty-five".