216100436 has 6 divisors (see below), whose sum is σ = 378175770. Its totient is φ = 108050216.

The previous prime is 216100429. The next prime is 216100439. The reversal of 216100436 is 634001612.

It is a happy number.

216100436 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 169260100 + 46840336 = 13010^2 + 6844^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216100439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27012551 + ... + 27012558.

It is an arithmetic number, because the mean of its divisors is an integer number (63029295).

Almost surely, 2^216100436 is an apocalyptic number.

It is an amenable number.

216100436 is a deficient number, since it is larger than the sum of its proper divisors (162075334).

216100436 is a wasteful number, since it uses less digits than its factorization.

216100436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54025113 (or 54025111 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 216100436 is about 14700.3549617008. The cubic root of 216100436 is about 600.0929818862.

The spelling of 216100436 in words is "two hundred sixteen million, one hundred thousand, four hundred thirty-six".