216707441917146 has 64 divisors (see below), whose sum is σ = 434761194700800. Its totient is φ = 72011877048000.

The previous prime is 216707441917129. The next prime is 216707441917147. The reversal of 216707441917146 is 641719144707612.

It is a happy number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 216707441917146.

It is not an unprimeable number, because it can be changed into a prime (216707441917147) 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, 6294311460 + ... + 6294345888.

It is an arithmetic number, because the mean of its divisors is an integer number (6793143667200).

Almost surely, 2^{216707441917146} is an apocalyptic number.

216707441917146 is an abundant number, since it is smaller than the sum of its proper divisors (218053752783654).

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

216707441917146 is a wasteful number, since it uses less digits than its factorization.

216707441917146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37595.

The product of its (nonzero) digits is 14224896, while the sum is 60.

The spelling of 216707441917146 in words is "two hundred sixteen trillion, seven hundred seven billion, four hundred forty-one million, nine hundred seventeen thousand, one hundred forty-six".