1512720116623 has 8 divisors (see below), whose sum is σ = 1518786475920. Its totient is φ = 1506654072000.

The previous prime is 1512720116603. The next prime is 1512720116707. The reversal of 1512720116623 is 3266110272151.

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 1512720116623 - 2⁹ = 1512720116111 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 (1512720116603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16675633 + ... + 16766101.

It is an arithmetic number, because the mean of its divisors is an integer number (189848309490).

Almost surely, 2^{1512720116623} is an apocalyptic number.

1512720116623 is a deficient number, since it is larger than the sum of its proper divisors (6066359297).

1512720116623 is an equidigital number, since it uses as much as digits as its factorization.

1512720116623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157337.

The product of its (nonzero) digits is 30240, while the sum is 37.

Adding to 1512720116623 its reverse (3266110272151), we get a palindrome (4778830388774).

The spelling of 1512720116623 in words is "one trillion, five hundred twelve billion, seven hundred twenty million, one hundred sixteen thousand, six hundred twenty-three".