216369028902 has 16 divisors (see below), whose sum is σ = 466025600880. Its totient is φ = 66575085792.

The previous prime is 216369028879. The next prime is 216369028903. The reversal of 216369028902 is 209820963612.

It is a happy number.

It is a super-2 number, since 2×216369028902² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216369028903) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1386980877 + ... + 1386981032.

It is an arithmetic number, because the mean of its divisors is an integer number (29126600055).

Almost surely, 2^216369028902 is an apocalyptic number.

216369028902 is an abundant number, since it is smaller than the sum of its proper divisors (249656571978).

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

216369028902 is a wasteful number, since it uses less digits than its factorization.

216369028902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2773961927.

The product of its (nonzero) digits is 559872, while the sum is 48.

The spelling of 216369028902 in words is "two hundred sixteen billion, three hundred sixty-nine million, twenty-eight thousand, nine hundred two".