16653023506 has 16 divisors (see below), whose sum is σ = 30227337216. Its totient is φ = 6717185856.

The previous prime is 16653023501. The next prime is 16653023509. The reversal of 16653023506 is 60532035661.

It is not an unprimeable number, because it can be changed into a prime (16653023501) 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, 34985106 + ... + 34985581.

It is an arithmetic number, because the mean of its divisors is an integer number (1889208576).

Almost surely, 2^16653023506 is an apocalyptic number.

16653023506 is a deficient number, since it is larger than the sum of its proper divisors (13574313710).

16653023506 is a wasteful number, since it uses less digits than its factorization.

16653023506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69970713.

The product of its (nonzero) digits is 97200, while the sum is 37.

It can be divided in two parts, 166530 and 23506, that added together give a triangular number (190036 = T₆₁₆).

The spelling of 16653023506 in words is "sixteen billion, six hundred fifty-three million, twenty-three thousand, five hundred six".