61165165 has 8 divisors (see below), whose sum is σ = 76589568. Its totient is φ = 46804560.

The previous prime is 61165141. The next prime is 61165177. The reversal of 61165165 is 56156116.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 61165165 - 2¹⁷ = 61034093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 265821 + ... + 266050.

It is an arithmetic number, because the mean of its divisors is an integer number (9573696).

Almost surely, 2^61165165 is an apocalyptic number.

It is an amenable number.

61165165 is a deficient number, since it is larger than the sum of its proper divisors (15424403).

61165165 is a wasteful number, since it uses less digits than its factorization.

61165165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 531899.

The product of its digits is 5400, while the sum is 31.

The square root of 61165165 is about 7820.8161338827. The cubic root of 61165165 is about 394.0046831364.

The spelling of 61165165 in words is "sixty-one million, one hundred sixty-five thousand, one hundred sixty-five".