652172116 has 6 divisors (see below), whose sum is σ = 1141301210. Its totient is φ = 326086056.

The previous prime is 652172083. The next prime is 652172119. The reversal of 652172116 is 611271256.

It can be written as a sum of positive squares in only one way, i.e., 529184016 + 122988100 = 23004^2 + 11090^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (652172119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81521511 + ... + 81521518.

Almost surely, 2^652172116 is an apocalyptic number.

It is an amenable number.

652172116 is a deficient number, since it is larger than the sum of its proper divisors (489129094).

652172116 is a wasteful number, since it uses less digits than its factorization.

652172116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163043033 (or 163043031 counting only the distinct ones).

The product of its digits is 5040, while the sum is 31.

The square root of 652172116 is about 25537.6607386033. The cubic root of 652172116 is about 867.2029411406.

The spelling of 652172116 in words is "six hundred fifty-two million, one hundred seventy-two thousand, one hundred sixteen".