1516166607715 has 4 divisors (see below), whose sum is σ = 1819399929264. Its totient is φ = 1212933286168.

The previous prime is 1516166607701. The next prime is 1516166607737. The reversal of 1516166607715 is 5177066616151.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1516166607715 - 2⁹ = 1516166607203 is a prime.

It is a super-2 number, since 2×1516166607715² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 151616660767 + ... + 151616660776.

It is an arithmetic number, because the mean of its divisors is an integer number (454849982316).

Almost surely, 2^{1516166607715} is an apocalyptic number.

1516166607715 is a deficient number, since it is larger than the sum of its proper divisors (303233321549).

1516166607715 is an equidigital number, since it uses as much as digits as its factorization.

1516166607715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303233321548.

The product of its (nonzero) digits is 1587600, while the sum is 52.

The spelling of 1516166607715 in words is "one trillion, five hundred sixteen billion, one hundred sixty-six million, six hundred seven thousand, seven hundred fifteen".