15745716349145 has 8 divisors (see below), whose sum is σ = 18920637058056. Its totient is φ = 12579388119936.

The previous prime is 15745716349117. The next prime is 15745716349171. The reversal of 15745716349145 is 54194361754751.

It can be written as a sum of positive squares in 4 ways, for example, as 3891825418441 + 11853890930704 = 1972771^2 + 3442948^2 .

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 15745716349145 - 2³⁰ = 15744642607321 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2148115892 + ... + 2148123221.

It is an arithmetic number, because the mean of its divisors is an integer number (2365079632257).

Almost surely, 2^{15745716349145} is an apocalyptic number.

It is an amenable number.

15745716349145 is a deficient number, since it is larger than the sum of its proper divisors (3174920708911).

15745716349145 is an equidigital number, since it uses as much as digits as its factorization.

15745716349145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4296239851.

The product of its digits is 63504000, while the sum is 62.

The spelling of 15745716349145 in words is "fifteen trillion, seven hundred forty-five billion, seven hundred sixteen million, three hundred forty-nine thousand, one hundred forty-five".