16649573007 has 8 divisors (see below), whose sum is σ = 22213337776. Its totient is φ = 11092761792.

The previous prime is 16649572981. The next prime is 16649573047. The reversal of 16649573007 is 70037594661.

It is a happy number.

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

It is not a de Polignac number, because 16649573007 - 2¹⁶ = 16649507471 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 (16649573047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1732798 + ... + 1742379.

It is an arithmetic number, because the mean of its divisors is an integer number (2776667222).

Almost surely, 2^16649573007 is an apocalyptic number.

16649573007 is a deficient number, since it is larger than the sum of its proper divisors (5563764769).

16649573007 is a wasteful number, since it uses less digits than its factorization.

16649573007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3476777.

The product of its (nonzero) digits is 952560, while the sum is 48.

The spelling of 16649573007 in words is "sixteen billion, six hundred forty-nine million, five hundred seventy-three thousand, seven".