215550014890 has 64 divisors (see below), whose sum is σ = 451082716416. Its totient is φ = 72632443392.

The previous prime is 215550014807. The next prime is 215550014893. The reversal of 215550014890 is 98410055512.

215550014890 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (215550014893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1371604 + ... + 1520656.

It is an arithmetic number, because the mean of its divisors is an integer number (7048167444).

Almost surely, 2^215550014890 is an apocalyptic number.

215550014890 is an abundant number, since it is smaller than the sum of its proper divisors (235532701526).

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

215550014890 is a wasteful number, since it uses less digits than its factorization.

215550014890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149423.

The product of its (nonzero) digits is 72000, while the sum is 40.

The spelling of 215550014890 in words is "two hundred fifteen billion, five hundred fifty million, fourteen thousand, eight hundred ninety".