215054445550000 has 120 divisors (see below), whose sum is σ = 595201888828512. Its totient is φ = 73732952640000.

The previous prime is 215054445549967. The next prime is 215054445550013. The reversal of 215054445550000 is 55544450512.

215054445550000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 306870637 + ... + 307570636.

Almost surely, 2^{215054445550000} is an apocalyptic number.

215054445550000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

215054445550000 is an abundant number, since it is smaller than the sum of its proper divisors (380147443278512).

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

215054445550000 is an frugal number, since it uses more digits than its factorization.

215054445550000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 614441313 (or 614441287 counting only the distinct ones).

The product of its (nonzero) digits is 400000, while the sum is 40.

The spelling of 215054445550000 in words is "two hundred fifteen trillion, fifty-four billion, four hundred forty-five million, five hundred fifty thousand".