216166100412510 has 128 divisors (see below), whose sum is σ = 579047336017920. Its totient is φ = 57383870688000.

The previous prime is 216166100412481. The next prime is 216166100412557. The reversal of 216166100412510 is 15214001661612.

216166100412510 is a `hidden beast` number, since 2 + 1 + 6 + 1 + 6 + 610 + 0 + 4 + 1 + 25 + 10 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3215240595 + ... + 3215307825.

It is an arithmetic number, because the mean of its divisors is an integer number (4523807312640).

Almost surely, 2^{216166100412510} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 216166100412510, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (289523668008960).

216166100412510 is an abundant number, since it is smaller than the sum of its proper divisors (362881235605410).

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

216166100412510 is a wasteful number, since it uses less digits than its factorization.

216166100412510 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120871 (or 120865 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The spelling of 216166100412510 in words is "two hundred sixteen trillion, one hundred sixty-six billion, one hundred million, four hundred twelve thousand, five hundred ten".