13215240550445 has 16 divisors (see below), whose sum is σ = 16214939420160. Its totient is φ = 10337023816704.

The previous prime is 13215240550397. The next prime is 13215240550453. The reversal of 13215240550445 is 54405504251231.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 13215240550445 - 2¹⁶ = 13215240484909 is a prime.

It is a super-2 number, since 2×13215240550445² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 162368564 + ... + 162449933.

It is an arithmetic number, because the mean of its divisors is an integer number (1013433713760).

Almost surely, 2^{13215240550445} is an apocalyptic number.

It is an amenable number.

13215240550445 is a deficient number, since it is larger than the sum of its proper divisors (2999698869715).

13215240550445 is a wasteful number, since it uses less digits than its factorization.

13215240550445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324818684.

The product of its (nonzero) digits is 480000, while the sum is 41.

The spelling of 13215240550445 in words is "thirteen trillion, two hundred fifteen billion, two hundred forty million, five hundred fifty thousand, four hundred forty-five".