16213335652 has 6 divisors (see below), whose sum is σ = 28373337398. Its totient is φ = 8106667824.

The previous prime is 16213335647. The next prime is 16213335667. The reversal of 16213335652 is 25653331261.

It can be written as a sum of positive squares in only one way, i.e., 12486721536 + 3726614116 = 111744^2 + 61046^2 .

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 as a sum of consecutive naturals, namely, 2026666953 + ... + 2026666960.

Almost surely, 2^16213335652 is an apocalyptic number.

It is an amenable number.

16213335652 is a deficient number, since it is larger than the sum of its proper divisors (12160001746).

16213335652 is a wasteful number, since it uses less digits than its factorization.

16213335652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4053333917 (or 4053333915 counting only the distinct ones).

The product of its digits is 97200, while the sum is 37.

The spelling of 16213335652 in words is "sixteen billion, two hundred thirteen million, three hundred thirty-five thousand, six hundred fifty-two".