66016252515165 has 8 divisors (see below), whose sum is σ = 105626004024288. Its totient is φ = 35208668008080.

The previous prime is 66016252515043. The next prime is 66016252515181. The reversal of 66016252515165 is 56151525261066.

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

It is not a de Polignac number, because 66016252515165 - 2¹⁶ = 66016252449629 is a prime.

It is a super-2 number, since 2×66016252515165² (a number of 28 digits) contains 22 as substring.

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, 2200541750491 + ... + 2200541750520.

It is an arithmetic number, because the mean of its divisors is an integer number (13203250503036).

Almost surely, 2^{66016252515165} is an apocalyptic number.

It is an amenable number.

66016252515165 is a deficient number, since it is larger than the sum of its proper divisors (39609751509123).

66016252515165 is a wasteful number, since it uses less digits than its factorization.

66016252515165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4401083501019.

The product of its (nonzero) digits is 3240000, while the sum is 51.

The spelling of 66016252515165 in words is "sixty-six trillion, sixteen billion, two hundred fifty-two million, five hundred fifteen thousand, one hundred sixty-five".