16433606628 has 36 divisors (see below), whose sum is σ = 43346616768. Its totient is φ = 5239700400.

The previous prime is 16433606603. The next prime is 16433606681. The reversal of 16433606628 is 82660633461.

16433606628 is a `hidden beast` number, since 1 + 6 + 4 + 33 + 606 + 6 + 2 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-3 number, since 3×16433606628³ (a number of 32 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9922848 + ... + 9924503.

It is an arithmetic number, because the mean of its divisors is an integer number (1204072688).

Almost surely, 2^16433606628 is an apocalyptic number.

16433606628 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

16433606628 is an abundant number, since it is smaller than the sum of its proper divisors (26913010140).

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

16433606628 is a wasteful number, since it uses less digits than its factorization.

16433606628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19847384 (or 19847379 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 45.

The spelling of 16433606628 in words is "sixteen billion, four hundred thirty-three million, six hundred six thousand, six hundred twenty-eight".