215153330064 has 20 divisors (see below), whose sum is σ = 555812769456. Its totient is φ = 71717776672.

The previous prime is 215153330059. The next prime is 215153330089. The reversal of 215153330064 is 460033351512.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2241180474 + ... + 2241180569.

Almost surely, 2^215153330064 is an apocalyptic number.

215153330064 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

215153330064 is an abundant number, since it is smaller than the sum of its proper divisors (340659439392).

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

215153330064 is a wasteful number, since it uses less digits than its factorization.

215153330064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4482361054 (or 4482361048 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 33.

Adding to 215153330064 its reverse (460033351512), we get a palindrome (675186681576).

The spelling of 215153330064 in words is "two hundred fifteen billion, one hundred fifty-three million, three hundred thirty thousand, sixty-four".