13320251547 has 16 divisors (see below), whose sum is σ = 17804301312. Its totient is φ = 8858210400.

The previous prime is 13320251537. The next prime is 13320251561. The reversal of 13320251547 is 74515202331.

It is not a de Polignac number, because 13320251547 - 2⁴ = 13320251531 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13320251507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3433773 + ... + 3437649.

It is an arithmetic number, because the mean of its divisors is an integer number (1112768832).

Almost surely, 2^13320251547 is an apocalyptic number.

13320251547 is a deficient number, since it is larger than the sum of its proper divisors (4484049765).

13320251547 is a wasteful number, since it uses less digits than its factorization.

13320251547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6418.

The product of its (nonzero) digits is 25200, while the sum is 33.

Adding to 13320251547 its reverse (74515202331), we get a palindrome (87835453878).

The spelling of 13320251547 in words is "thirteen billion, three hundred twenty million, two hundred fifty-one thousand, five hundred forty-seven".