66157615550119 has 8 divisors (see below), whose sum is σ = 68308279861248. Its totient is φ = 64007985469080.

The previous prime is 66157615550107. The next prime is 66157615550123. The reversal of 66157615550119 is 91105551675166.

66157615550119 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 66157615550119 - 2³⁹ = 65607859736231 is a prime.

It is a super-2 number, since 2×66157615550119² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66157615550149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 258427507 + ... + 258683380.

It is an arithmetic number, because the mean of its divisors is an integer number (8538534982656).

Almost surely, 2^{66157615550119} is an apocalyptic number.

66157615550119 is a deficient number, since it is larger than the sum of its proper divisors (2150664311129).

66157615550119 is a wasteful number, since it uses less digits than its factorization.

66157615550119 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 517115045.

The product of its (nonzero) digits is 8505000, while the sum is 58.

The spelling of 66157615550119 in words is "sixty-six trillion, one hundred fifty-seven billion, six hundred fifteen million, five hundred fifty thousand, one hundred nineteen".