6650537173 has 16 divisors (see below), whose sum is σ = 8060356224. Its totient is φ = 5356707840.

The previous prime is 6650537161. The next prime is 6650537191. The reversal of 6650537173 is 3717350566.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 6650537173 - 2¹³ = 6650528981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6650532173) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32686 + ... + 119872.

It is an arithmetic number, because the mean of its divisors is an integer number (503772264).

Almost surely, 2^6650537173 is an apocalyptic number.

It is an amenable number.

6650537173 is a deficient number, since it is larger than the sum of its proper divisors (1409819051).

6650537173 is a wasteful number, since it uses less digits than its factorization.

6650537173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87852.

The product of its (nonzero) digits is 396900, while the sum is 43.

The square root of 6650537173 is about 81550.8257039743. The cubic root of 6650537173 is about 1880.5529885449.

The spelling of 6650537173 in words is "six billion, six hundred fifty million, five hundred thirty-seven thousand, one hundred seventy-three".