215445027144 has 64 divisors (see below), whose sum is σ = 540781344000. Its totient is φ = 71526369600.

The previous prime is 215445027137. The next prime is 215445027163. The reversal of 215445027144 is 441720544512.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6705919 + ... + 6737969.

It is an arithmetic number, because the mean of its divisors is an integer number (8449708500).

Almost surely, 2^215445027144 is an apocalyptic number.

215445027144 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

215445027144 is an abundant number, since it is smaller than the sum of its proper divisors (325336316856).

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

215445027144 is a wasteful number, since it uses less digits than its factorization.

215445027144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33178 (or 33174 counting only the distinct ones).

The product of its (nonzero) digits is 179200, while the sum is 39.

The spelling of 215445027144 in words is "two hundred fifteen billion, four hundred forty-five million, twenty-seven thousand, one hundred forty-four".