216636423003 has 96 divisors (see below), whose sum is σ = 420921027072. Its totient is φ = 103689331200.

The previous prime is 216636422929. The next prime is 216636423023. The reversal of 216636423003 is 300324636612.

216636423003 is a `hidden beast` number, since 2 + 1 + 6 + 6 + 3 + 642 + 3 + 0 + 0 + 3 = 666.

It is not a de Polignac number, because 216636423003 - 2¹⁴ = 216636406619 is a prime.

It is not an unprimeable number, because it can be changed into a prime (216636423023) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4905943 + ... + 4949903.

It is an arithmetic number, because the mean of its divisors is an integer number (4384594032).

Almost surely, 2^216636423003 is an apocalyptic number.

216636423003 is a deficient number, since it is larger than the sum of its proper divisors (204284604069).

216636423003 is a wasteful number, since it uses less digits than its factorization.

216636423003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44545 (or 44542 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 36.

The spelling of 216636423003 in words is "two hundred sixteen billion, six hundred thirty-six million, four hundred twenty-three thousand, three".