216462503516 has 24 divisors (see below), whose sum is σ = 434335203456. Its totient is φ = 92467459440.

The previous prime is 216462503501. The next prime is 216462503519. The reversal of 216462503516 is 615305264612.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216462503519) 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, 12582290 + ... + 12599481.

It is an arithmetic number, because the mean of its divisors is an integer number (18097300144).

Almost surely, 2^216462503516 is an apocalyptic number.

It is an amenable number.

216462503516 is an abundant number, since it is smaller than the sum of its proper divisors (217872699940).

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

216462503516 is a wasteful number, since it uses less digits than its factorization.

216462503516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25182089 (or 25182087 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 41.

The spelling of 216462503516 in words is "two hundred sixteen billion, four hundred sixty-two million, five hundred three thousand, five hundred sixteen".