215153330056 has 16 divisors (see below), whose sum is σ = 461042850240. Its totient is φ = 92208570000.

The previous prime is 215153330033. The next prime is 215153330057. The reversal of 215153330056 is 650033351512.

It is not an unprimeable number, because it can be changed into a prime (215153330057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1921011820 + ... + 1921011931.

It is an arithmetic number, because the mean of its divisors is an integer number (28815178140).

Almost surely, 2^215153330056 is an apocalyptic number.

It is an amenable number.

215153330056 is an abundant number, since it is smaller than the sum of its proper divisors (245889520184).

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

215153330056 is a wasteful number, since it uses less digits than its factorization.

215153330056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3842023764 (or 3842023760 counting only the distinct ones).

The product of its (nonzero) digits is 40500, while the sum is 34.

Adding to 215153330056 its reverse (650033351512), we get a palindrome (865186681568).

The spelling of 215153330056 in words is "two hundred fifteen billion, one hundred fifty-three million, three hundred thirty thousand, fifty-six".