252606021706 has 8 divisors (see below), whose sum is σ = 398851613280. Its totient is φ = 119655483948.

The previous prime is 252606021677. The next prime is 252606021713. The reversal of 252606021706 is 607120606252.

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

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, 3323763406 + ... + 3323763481.

It is an arithmetic number, because the mean of its divisors is an integer number (49856451660).

Almost surely, 2^252606021706 is an apocalyptic number.

252606021706 is a deficient number, since it is larger than the sum of its proper divisors (146245591574).

252606021706 is a wasteful number, since it uses less digits than its factorization.

252606021706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6647526908.

The product of its (nonzero) digits is 60480, while the sum is 37.

Adding to 252606021706 its reverse (607120606252), we get a palindrome (859726627958).

The spelling of 252606021706 in words is "two hundred fifty-two billion, six hundred six million, twenty-one thousand, seven hundred six".