16006665207 has 8 divisors (see below), whose sum is σ = 22983929584. Its totient is φ = 9850255488.

The previous prime is 16006665187. The next prime is 16006665253. The reversal of 16006665207 is 70256660061.

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

It is not a de Polignac number, because 16006665207 - 2¹⁹ = 16006140919 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 410427313 = 16006665207 / (1 + 6 + 0 + 0 + 6 + 6 + 6 + 5 + 2 + 0 + 7).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16006665277) 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, 205213618 + ... + 205213695.

It is an arithmetic number, because the mean of its divisors is an integer number (2872991198).

Almost surely, 2^16006665207 is an apocalyptic number.

16006665207 is a deficient number, since it is larger than the sum of its proper divisors (6977264377).

16006665207 is a wasteful number, since it uses less digits than its factorization.

16006665207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410427329.

The product of its (nonzero) digits is 90720, while the sum is 39.

The spelling of 16006665207 in words is "sixteen billion, six million, six hundred sixty-five thousand, two hundred seven".