216670601776 has 20 divisors (see below), whose sum is σ = 419930209800. Its totient is φ = 108301515392.

The previous prime is 216670601773. The next prime is 216670601801. The reversal of 216670601776 is 677106076612.

It is a super-2 number, since 2×216670601776² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (216670601773) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2058646 + ... + 2161333.

It is an arithmetic number, because the mean of its divisors is an integer number (20996510490).

Almost surely, 2^216670601776 is an apocalyptic number.

It is an amenable number.

216670601776 is a deficient number, since it is larger than the sum of its proper divisors (203259608024).

216670601776 is a wasteful number, since it uses less digits than its factorization.

216670601776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4223196 (or 4223190 counting only the distinct ones).

The product of its (nonzero) digits is 889056, while the sum is 49.

The spelling of 216670601776 in words is "two hundred sixteen billion, six hundred seventy million, six hundred one thousand, seven hundred seventy-six".