61516010165 has 8 divisors (see below), whose sum is σ = 73936203648. Its totient is φ = 49134813840.

The previous prime is 61516010137. The next prime is 61516010189. The reversal of 61516010165 is 56101061516.

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

It is not a de Polignac number, because 61516010165 - 2²⁰ = 61514961589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9745817 + ... + 9752126.

It is an arithmetic number, because the mean of its divisors is an integer number (9242025456).

Almost surely, 2^61516010165 is an apocalyptic number.

It is an amenable number.

61516010165 is a deficient number, since it is larger than the sum of its proper divisors (12420193483).

61516010165 is a wasteful number, since it uses less digits than its factorization.

61516010165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19498579.

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

The spelling of 61516010165 in words is "sixty-one billion, five hundred sixteen million, ten thousand, one hundred sixty-five".