216364503032531 has 8 divisors (see below), whose sum is σ = 248334978344544. Its totient is φ = 184659342868800.

The previous prime is 216364503032519. The next prime is 216364503032537. The reversal of 216364503032531 is 135230305463612.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 216364503032531 - 2¹⁰ = 216364503031507 is a prime.

It is a super-2 number, since 2×216364503032531² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (216364503032537) 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, 66328785320 + ... + 66328788581.

It is an arithmetic number, because the mean of its divisors is an integer number (31041872293068).

Almost surely, 2^{216364503032531} is an apocalyptic number.

216364503032531 is a deficient number, since it is larger than the sum of its proper divisors (31970475312013).

216364503032531 is a wasteful number, since it uses less digits than its factorization.

216364503032531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132657574141.

The product of its (nonzero) digits is 1166400, while the sum is 44.

The spelling of 216364503032531 in words is "two hundred sixteen trillion, three hundred sixty-four billion, five hundred three million, thirty-two thousand, five hundred thirty-one".