16440466446 has 24 divisors (see below), whose sum is σ = 35694173424. Its totient is φ = 5468899680.

The previous prime is 16440466429. The next prime is 16440466453. The reversal of 16440466446 is 64466404461.

16440466446 is a `hidden beast` number, since 164 + 4 + 0 + 46 + 6 + 446 = 666.

It is a super-3 number, since 3×16440466446³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

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, 928975 + ... + 946506.

It is an arithmetic number, because the mean of its divisors is an integer number (1487257226).

Almost surely, 2^16440466446 is an apocalyptic number.

16440466446 is an abundant number, since it is smaller than the sum of its proper divisors (19253706978).

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

16440466446 is a wasteful number, since it uses less digits than its factorization.

16440466446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1875976 (or 1875973 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 45.

The spelling of 16440466446 in words is "sixteen billion, four hundred forty million, four hundred sixty-six thousand, four hundred forty-six".