215513143204000 has 96 divisors (see below), whose sum is σ = 529694050197312. Its totient is φ = 86176236960000.

The previous prime is 215513143203983. The next prime is 215513143204061. The reversal of 215513143204000 is 402341315512.

It is a super-2 number, since 2×215513143204000² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2816635 + ... + 20951365.

It is an arithmetic number, because the mean of its divisors is an integer number (5517646356222).

Almost surely, 2^{215513143204000} is an apocalyptic number.

215513143204000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 215513143204000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (264847025098656).

215513143204000 is an abundant number, since it is smaller than the sum of its proper divisors (314180906993312).

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

215513143204000 is a wasteful number, since it uses less digits than its factorization.

215513143204000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18137727 (or 18137709 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 31.

Adding to 215513143204000 its reverse (402341315512), we get a palindrome (215915484519512).

The spelling of 215513143204000 in words is "two hundred fifteen trillion, five hundred thirteen billion, one hundred forty-three million, two hundred four thousand".