216066071378476 has 96 divisors (see below), whose sum is σ = 435340342886400. Its totient is φ = 92798712198720.

The previous prime is 216066071378413. The next prime is 216066071378513. The reversal of 216066071378476 is 674873170660612.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 492543405 + ... + 492981883.

It is an arithmetic number, because the mean of its divisors is an integer number (4534795238400).

Almost surely, 2^{216066071378476} is an apocalyptic number.

It is an amenable number.

216066071378476 is an abundant number, since it is smaller than the sum of its proper divisors (219274271507924).

216066071378476 is a wasteful number, since it uses less digits than its factorization.

216066071378476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440059 (or 440057 counting only the distinct ones).

The product of its (nonzero) digits is 85349376, while the sum is 64.

The spelling of 216066071378476 in words is "two hundred sixteen trillion, sixty-six billion, seventy-one million, three hundred seventy-eight thousand, four hundred seventy-six".