16634642132 has 24 divisors (see below), whose sum is σ = 30036526464. Its totient is φ = 8056426752.

The previous prime is 16634642113. The next prime is 16634642159. The reversal of 16634642132 is 23124643661.

It is a super-2 number, since 2×16634642132² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 437858 + ... + 474329.

It is an arithmetic number, because the mean of its divisors is an integer number (1251521936).

Almost surely, 2^16634642132 is an apocalyptic number.

It is an amenable number.

16634642132 is a deficient number, since it is larger than the sum of its proper divisors (13401884332).

16634642132 is a wasteful number, since it uses less digits than its factorization.

16634642132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 912335 (or 912333 counting only the distinct ones).

The product of its digits is 124416, while the sum is 38.

The spelling of 16634642132 in words is "sixteen billion, six hundred thirty-four million, six hundred forty-two thousand, one hundred thirty-two".