216541989819001 has 32 divisors (see below), whose sum is σ = 284212330859520. Its totient is φ = 159837124392000.

The previous prime is 216541989818993. The next prime is 216541989819031. The reversal of 216541989819001 is 100918989145612.

216541989819001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 216541989819001 - 2³ = 216541989818993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (216541989819031) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7010550 + ... + 21959776.

It is an arithmetic number, because the mean of its divisors is an integer number (8881635339360).

Almost surely, 2^{216541989819001} is an apocalyptic number.

It is an amenable number.

216541989819001 is a deficient number, since it is larger than the sum of its proper divisors (67670341040519).

216541989819001 is a wasteful number, since it uses less digits than its factorization.

216541989819001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14959165.

The product of its (nonzero) digits is 11197440, while the sum is 64.

The spelling of 216541989819001 in words is "two hundred sixteen trillion, five hundred forty-one billion, nine hundred eighty-nine million, eight hundred nineteen thousand, one".