216946359258 has 16 divisors (see below), whose sum is σ = 434537440896. Its totient is φ = 72207999360.

The previous prime is 216946359251. The next prime is 216946359263. The reversal of 216946359258 is 852953649612.

216946359258 is digitally balanced in base 7, 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 (216946359251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26859058 + ... + 26867133.

It is an arithmetic number, because the mean of its divisors is an integer number (27158590056).

Almost surely, 2^216946359258 is an apocalyptic number.

216946359258 is an abundant number, since it is smaller than the sum of its proper divisors (217591081638).

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

216946359258 is a wasteful number, since it uses less digits than its factorization.

216946359258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53726869.

The product of its digits is 27993600, while the sum is 60.

The spelling of 216946359258 in words is "two hundred sixteen billion, nine hundred forty-six million, three hundred fifty-nine thousand, two hundred fifty-eight".