78116660127345 has 32 divisors (see below), whose sum is σ = 142859729514240. Its totient is φ = 35706014023680.

The previous prime is 78116660127323. The next prime is 78116660127361. The reversal of 78116660127345 is 54372106661187.

It is not a de Polignac number, because 78116660127345 - 2¹³ = 78116660119153 is a prime.

It is a super-2 number, since 2×78116660127345² (a number of 29 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 45604816 + ... + 47286705.

It is an arithmetic number, because the mean of its divisors is an integer number (4464366547320).

Almost surely, 2^{78116660127345} is an apocalyptic number.

It is an amenable number.

78116660127345 is a deficient number, since it is larger than the sum of its proper divisors (64743069386895).

78116660127345 is a wasteful number, since it uses less digits than its factorization.

78116660127345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92899545.

The product of its (nonzero) digits is 10160640, while the sum is 57.

The spelling of 78116660127345 in words is "seventy-eight trillion, one hundred sixteen billion, six hundred sixty million, one hundred twenty-seven thousand, three hundred forty-five".