15485057166721 has 8 divisors (see below), whose sum is σ = 15702479189280. Its totient is φ = 15267778332192.

The previous prime is 15485057166701. The next prime is 15485057166731. The reversal of 15485057166721 is 12766175058451.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15485057166721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15485057166701) 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, 35579191 + ... + 36011788.

It is an arithmetic number, because the mean of its divisors is an integer number (1962809898660).

Almost surely, 2^{15485057166721} is an apocalyptic number.

It is an amenable number.

15485057166721 is a deficient number, since it is larger than the sum of its proper divisors (217422022559).

15485057166721 is an equidigital number, since it uses as much as digits as its factorization.

15485057166721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71594015.

The product of its (nonzero) digits is 14112000, while the sum is 58.

The spelling of 15485057166721 in words is "fifteen trillion, four hundred eighty-five billion, fifty-seven million, one hundred sixty-six thousand, seven hundred twenty-one".