16211855652 has 24 divisors (see below), whose sum is σ = 37844620800. Its totient is φ = 5401529376.

The previous prime is 16211855651. The next prime is 16211855663. The reversal of 16211855652 is 25655811261.

It is not an unprimeable number, because it can be changed into a prime (16211855651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 274827 + ... + 328562.

It is an arithmetic number, because the mean of its divisors is an integer number (1576859200).

Almost surely, 2^16211855652 is an apocalyptic number.

16211855652 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16211855652 is an abundant number, since it is smaller than the sum of its proper divisors (21632765148).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16211855652 is a wasteful number, since it uses less digits than its factorization.

16211855652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 605635 (or 605633 counting only the distinct ones).

The product of its digits is 144000, while the sum is 42.

The spelling of 16211855652 in words is "sixteen billion, two hundred eleven million, eight hundred fifty-five thousand, six hundred fifty-two".