1516171216151 has 4 divisors (see below), whose sum is σ = 1517803263600. Its totient is φ = 1514539168704.

The previous prime is 1516171216127. The next prime is 1516171216199. The reversal of 1516171216151 is 1516121716151.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1516171216151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1516171216051) by changing a digit.

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, 816022331 + ... + 816024188.

It is an arithmetic number, because the mean of its divisors is an integer number (379450815900).

Almost surely, 2^{1516171216151} is an apocalyptic number.

1516171216151 is a deficient number, since it is larger than the sum of its proper divisors (1632047449).

1516171216151 is an equidigital number, since it uses as much as digits as its factorization.

1516171216151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1632047448.

The product of its digits is 12600, while the sum is 38.

The spelling of 1516171216151 in words is "one trillion, five hundred sixteen billion, one hundred seventy-one million, two hundred sixteen thousand, one hundred fifty-one".