16659022464 has 384 divisors, whose sum is σ = 59820633600. Its totient is φ = 4508089344.

The previous prime is 16659022459. The next prime is 16659022481. The reversal of 16659022464 is 46422095661.

16659022464 is a `hidden beast` number, since 16 + 6 + 590 + 2 + 2 + 46 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (384).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4134819 + ... + 4138845.

It is an arithmetic number, because the mean of its divisors is an integer number (155782900).

Almost surely, 2^16659022464 is an apocalyptic number.

16659022464 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16659022464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29910316800).

16659022464 is an abundant number, since it is smaller than the sum of its proper divisors (43161611136).

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

16659022464 is an equidigital number, since it uses as much as digits as its factorization.

16659022464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4082 (or 4058 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 45.

The spelling of 16659022464 in words is "sixteen billion, six hundred fifty-nine million, twenty-two thousand, four hundred sixty-four".