12072101556517 has 8 divisors (see below), whose sum is σ = 12398419706400. Its totient is φ = 11745785782224.

The previous prime is 12072101556469. The next prime is 12072101556533. The reversal of 12072101556517 is 71565510127021.

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 12072101556517 - 2³⁹ = 11522345742629 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 (12072101556577) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15581334 + ... + 16337752.

It is an arithmetic number, because the mean of its divisors is an integer number (1549802463300).

Almost surely, 2^{12072101556517} is an apocalyptic number.

It is an amenable number.

12072101556517 is a deficient number, since it is larger than the sum of its proper divisors (326318149883).

12072101556517 is an equidigital number, since it uses as much as digits as its factorization.

12072101556517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1187795.

The product of its (nonzero) digits is 147000, while the sum is 43.

The spelling of 12072101556517 in words is "twelve trillion, seventy-two billion, one hundred one million, five hundred fifty-six thousand, five hundred seventeen".