16502666002 has 4 divisors (see below), whose sum is σ = 24753999006. Its totient is φ = 8251333000.

The previous prime is 16502665999. The next prime is 16502666023. The reversal of 16502666002 is 20066620561.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 10110503601 + 6392162401 = 100551^2 + 79951^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4125666499 + ... + 4125666502.

Almost surely, 2^16502666002 is an apocalyptic number.

16502666002 is a deficient number, since it is larger than the sum of its proper divisors (8251333004).

16502666002 is an equidigital number, since it uses as much as digits as its factorization.

16502666002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8251333003.

The product of its (nonzero) digits is 25920, while the sum is 34.

The spelling of 16502666002 in words is "sixteen billion, five hundred two million, six hundred sixty-six thousand, two".