16628470997 has 8 divisors (see below), whose sum is σ = 16787380896. Its totient is φ = 16469626192.

The previous prime is 16628470993. The next prime is 16628471003. The reversal of 16628470997 is 79907482661.

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

It is a cyclic number.

It is not a de Polignac number, because 16628470997 - 2² = 16628470993 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16628470993) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 611903 + ... + 638499.

It is an arithmetic number, because the mean of its divisors is an integer number (2098422612).

Almost surely, 2^16628470997 is an apocalyptic number.

It is an amenable number.

16628470997 is a deficient number, since it is larger than the sum of its proper divisors (158909899).

16628470997 is a wasteful number, since it uses less digits than its factorization.

16628470997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32547.

The product of its (nonzero) digits is 9144576, while the sum is 59.

The spelling of 16628470997 in words is "sixteen billion, six hundred twenty-eight million, four hundred seventy thousand, nine hundred ninety-seven".