216035748251218 has 32 divisors (see below), whose sum is σ = 382657417924608. Its totient is φ = 89514827514000.

The previous prime is 216035748251137. The next prime is 216035748251269. The reversal of 216035748251218 is 812152847530612.

It is a super-4 number, since 4×216035748251218⁴ (a number of 58 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 236355580 + ... + 237267847.

It is an arithmetic number, because the mean of its divisors is an integer number (11958044310144).

Almost surely, 2^{216035748251218} is an apocalyptic number.

216035748251218 is a deficient number, since it is larger than the sum of its proper divisors (166621669673390).

216035748251218 is a wasteful number, since it uses less digits than its factorization.

216035748251218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473624518.

The product of its (nonzero) digits is 6451200, while the sum is 55.

The spelling of 216035748251218 in words is "two hundred sixteen trillion, thirty-five billion, seven hundred forty-eight million, two hundred fifty-one thousand, two hundred eighteen".