16634939252 has 24 divisors (see below), whose sum is σ = 29272990824. Its totient is φ = 8271268992.

The previous prime is 16634939231. The next prime is 16634939273. The reversal of 16634939252 is 25293943661.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (16634939231) and next prime (16634939273).

It can be written as a sum of positive squares in 4 ways, for example, as 14107263076 + 2527676176 = 118774^2 + 50276^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 16634939252.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2294978 + ... + 2302214.

It is an arithmetic number, because the mean of its divisors is an integer number (1219707951).

Almost surely, 2^16634939252 is an apocalyptic number.

It is an amenable number.

16634939252 is a deficient number, since it is larger than the sum of its proper divisors (12638051572).

16634939252 is a wasteful number, since it uses less digits than its factorization.

16634939252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10355 (or 10353 counting only the distinct ones).

The product of its digits is 2099520, while the sum is 50.

The spelling of 16634939252 in words is "sixteen billion, six hundred thirty-four million, nine hundred thirty-nine thousand, two hundred fifty-two".