65610516155 has 8 divisors (see below), whose sum is σ = 78739327392. Its totient is φ = 52483940928.

The previous prime is 65610516137. The next prime is 65610516187. The reversal of 65610516155 is 55161501656.

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

It is a cyclic number.

It is not a de Polignac number, because 65610516155 - 2¹⁸ = 65610254011 is a prime.

It is a Duffinian 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, 493754 + ... + 612383.

It is an arithmetic number, because the mean of its divisors is an integer number (9842415924).

Almost surely, 2^65610516155 is an apocalyptic number.

65610516155 is a deficient number, since it is larger than the sum of its proper divisors (13128811237).

65610516155 is a wasteful number, since it uses less digits than its factorization.

65610516155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1118005.

The product of its (nonzero) digits is 135000, while the sum is 41.

The spelling of 65610516155 in words is "sixty-five billion, six hundred ten million, five hundred sixteen thousand, one hundred fifty-five".