16506661202 has 8 divisors (see below), whose sum is σ = 25558701312. Its totient is φ = 7987094100.

The previous prime is 16506661153. The next prime is 16506661243. The reversal of 16506661202 is 20216660561.

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

It is a super-2 number, since 2×16506661202² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133118174 + ... + 133118297.

It is an arithmetic number, because the mean of its divisors is an integer number (3194837664).

Almost surely, 2^16506661202 is an apocalyptic number.

16506661202 is a deficient number, since it is larger than the sum of its proper divisors (9052040110).

16506661202 is a wasteful number, since it uses less digits than its factorization.

16506661202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266236504.

The product of its (nonzero) digits is 25920, while the sum is 35.

The spelling of 16506661202 in words is "sixteen billion, five hundred six million, six hundred sixty-one thousand, two hundred two".