16670424996 has 81 divisors (see below), whose sum is σ = 43812614209. Its totient is φ = 5549836176.

The previous prime is 16670424973. The next prime is 16670425021. The reversal of 16670424996 is 69942407661.

It is a happy number.

The square root of 16670424996 is 129114.

It is a perfect power (a square), and thus also a powerful number.

16670424996 is a `hidden beast` number, since 1 + 66 + 70 + 424 + 9 + 96 = 666.

It can be written as a sum of positive squares in only one way, i.e., 8083808100 + 8586616896 = 89910^2 + 92664^2 .

It is a tau number, because it is divible by the number of its divisors (81).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 20916070 + ... + 20916866.

Almost surely, 2^16670424996 is an apocalyptic number.

16670424996 is the 129114-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16670424996

16670424996 is an abundant number, since it is smaller than the sum of its proper divisors (27142189213).

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

16670424996 is an frugal number, since it uses more digits than its factorization.

16670424996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1622 (or 802 counting only the distinct ones).

The product of its (nonzero) digits is 3919104, while the sum is 54.

The spelling of 16670424996 in words is "sixteen billion, six hundred seventy million, four hundred twenty-four thousand, nine hundred ninety-six".