16667666402 has 8 divisors (see below), whose sum is σ = 25004149200. Its totient is φ = 8332950004.

The previous prime is 16667666399. The next prime is 16667666467. The reversal of 16667666402 is 20466676661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×16667666402² (a number of 21 digits) contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 417752 + ... + 455907.

It is an arithmetic number, because the mean of its divisors is an integer number (3125518650).

Almost surely, 2^16667666402 is an apocalyptic number.

16667666402 is a deficient number, since it is larger than the sum of its proper divisors (8336482798).

16667666402 is an equidigital number, since it uses as much as digits as its factorization.

16667666402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 883200.

The product of its (nonzero) digits is 2612736, while the sum is 50.

The spelling of 16667666402 in words is "sixteen billion, six hundred sixty-seven million, six hundred sixty-six thousand, four hundred two".