16263531466 has 48 divisors (see below), whose sum is σ = 30892238784. Its totient is φ = 6284259072.

The previous prime is 16263531443. The next prime is 16263531467. The reversal of 16263531466 is 66413536261.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is not an unprimeable number, because it can be changed into a prime (16263531467) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21810 + ... + 181666.

It is an arithmetic number, because the mean of its divisors is an integer number (643588308).

Almost surely, 2^16263531466 is an apocalyptic number.

16263531466 is a deficient number, since it is larger than the sum of its proper divisors (14628707318).

16263531466 is a wasteful number, since it uses less digits than its factorization.

16263531466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159935 (or 159922 counting only the distinct ones).

The product of its digits is 466560, while the sum is 43.

The spelling of 16263531466 in words is "sixteen billion, two hundred sixty-three million, five hundred thirty-one thousand, four hundred sixty-six".