16651515006 has 64 divisors (see below), whose sum is σ = 42302453760. Its totient is φ = 4756125600.

The previous prime is 16651514993. The next prime is 16651515007. The reversal of 16651515006 is 60051515661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16651515007) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2151115 + ... + 2158841.

It is an arithmetic number, because the mean of its divisors is an integer number (660975840).

Almost surely, 2^16651515006 is an apocalyptic number.

16651515006 is an abundant number, since it is smaller than the sum of its proper divisors (25650938754).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16651515006 is a wasteful number, since it uses less digits than its factorization.

16651515006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13446 (or 13440 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 36.

The spelling of 16651515006 in words is "sixteen billion, six hundred fifty-one million, five hundred fifteen thousand, six".