14745715015681 has 8 divisors (see below), whose sum is σ = 15910480641384. Its totient is φ = 13585303655040.

The previous prime is 14745715015679. The next prime is 14745715015693. The reversal of 14745715015681 is 18651051754741.

It can be written as a sum of positive squares in 4 ways, for example, as 20690233281 + 14725024782400 = 143841^2 + 3837320^2 .

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

It is not a de Polignac number, because 14745715015681 - 2¹ = 14745715015679 is a prime.

It is a super-2 number, since 2×14745715015681² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14745715015621) 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, 1088559226 + ... + 1088572771.

It is an arithmetic number, because the mean of its divisors is an integer number (1988810080173).

Almost surely, 2^{14745715015681} is an apocalyptic number.

It is an amenable number.

14745715015681 is a deficient number, since it is larger than the sum of its proper divisors (1164765625703).

14745715015681 is a wasteful number, since it uses less digits than its factorization.

14745715015681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2177132531.

The product of its (nonzero) digits is 4704000, while the sum is 55.

The spelling of 14745715015681 in words is "fourteen trillion, seven hundred forty-five billion, seven hundred fifteen million, fifteen thousand, six hundred eighty-one".