61015165610 has 64 divisors (see below), whose sum is σ = 128965409280. Its totient is φ = 20345230080.

The previous prime is 61015165609. The next prime is 61015165649. The reversal of 61015165610 is 1656151016.

It is a Curzon 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 31 ways as a sum of consecutive naturals, for example, 8981315 + ... + 8988105.

It is an arithmetic number, because the mean of its divisors is an integer number (2015084520).

Almost surely, 2^61015165610 is an apocalyptic number.

61015165610 is an abundant number, since it is smaller than the sum of its proper divisors (67950243670).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61015165610 is a wasteful number, since it uses less digits than its factorization.

61015165610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10311.

The product of its (nonzero) digits is 5400, while the sum is 32.

The spelling of 61015165610 in words is "sixty-one billion, fifteen million, one hundred sixty-five thousand, six hundred ten".