13215245131554 has 64 divisors (see below), whose sum is σ = 26649244339200. Its totient is φ = 4368720026880.

The previous prime is 13215245131553. The next prime is 13215245131589. The reversal of 13215245131554 is 45513154251231.

It is not an unprimeable number, because it can be changed into a prime (13215245131553) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2478010672 + ... + 2478016004.

It is an arithmetic number, because the mean of its divisors is an integer number (416394442800).

Almost surely, 2^{13215245131554} is an apocalyptic number.

13215245131554 is an abundant number, since it is smaller than the sum of its proper divisors (13433999207646).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13215245131554 is a wasteful number, since it uses less digits than its factorization.

13215245131554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9275.

The product of its digits is 360000, while the sum is 42.

Adding to 13215245131554 its reverse (45513154251231), we get a palindrome (58728399382785).

The spelling of 13215245131554 in words is "thirteen trillion, two hundred fifteen billion, two hundred forty-five million, one hundred thirty-one thousand, five hundred fifty-four".