13144451520415 has 8 divisors (see below), whose sum is σ = 15784152896880. Its totient is φ = 10508353834752.

The previous prime is 13144451520377. The next prime is 13144451520479. The reversal of 13144451520415 is 51402515444131.

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 13144451520415 - 2¹⁷ = 13144451389343 is a prime.

It is a congruent 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, 900914674 + ... + 900929263.

It is an arithmetic number, because the mean of its divisors is an integer number (1973019112110).

Almost surely, 2^{13144451520415} is an apocalyptic number.

13144451520415 is a deficient number, since it is larger than the sum of its proper divisors (2639701376465).

13144451520415 is a wasteful number, since it uses less digits than its factorization.

13144451520415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1801845401.

The product of its (nonzero) digits is 192000, while the sum is 40.

Adding to 13144451520415 its reverse (51402515444131), we get a palindrome (64546966964546).

The spelling of 13144451520415 in words is "thirteen trillion, one hundred forty-four billion, four hundred fifty-one million, five hundred twenty thousand, four hundred fifteen".