16555783332 has 24 divisors (see below), whose sum is σ = 42141994272. Its totient is φ = 5016904000.

The previous prime is 16555783297. The next prime is 16555783339. The reversal of 16555783332 is 23338755561.

It is a super-2 number, since 2×16555783332² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16555783339) 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, 62711169 + ... + 62711432.

It is an arithmetic number, because the mean of its divisors is an integer number (1755916428).

Almost surely, 2^16555783332 is an apocalyptic number.

16555783332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16555783332 is an abundant number, since it is smaller than the sum of its proper divisors (25586210940).

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

16555783332 is a wasteful number, since it uses less digits than its factorization.

16555783332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125422619 (or 125422617 counting only the distinct ones).

The product of its digits is 2268000, while the sum is 48.

The spelling of 16555783332 in words is "sixteen billion, five hundred fifty-five million, seven hundred eighty-three thousand, three hundred thirty-two".