215543651230 has 16 divisors (see below), whose sum is σ = 388172307024. Its totient is φ = 86174408320.

The previous prime is 215543651221. The next prime is 215543651237. The reversal of 215543651230 is 32156345512.

It is a self number, because there is not a number n which added to its sum of digits gives 215543651230.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215543651237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5360491 + ... + 5400550.

It is an arithmetic number, because the mean of its divisors is an integer number (24260769189).

Almost surely, 2^215543651230 is an apocalyptic number.

215543651230 is a deficient number, since it is larger than the sum of its proper divisors (172628655794).

215543651230 is a wasteful number, since it uses less digits than its factorization.

215543651230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10763051.

The product of its (nonzero) digits is 108000, while the sum is 37.

Adding to 215543651230 its reverse (32156345512), we get a palindrome (247699996742).

The spelling of 215543651230 in words is "two hundred fifteen billion, five hundred forty-three million, six hundred fifty-one thousand, two hundred thirty".