252145170646 has 8 divisors (see below), whose sum is σ = 379800257760. Its totient is φ = 125545084728.

The previous prime is 252145170643. The next prime is 252145170677. The reversal of 252145170646 is 646071541252.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252145170643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 263749701 + ... + 263750656.

It is an arithmetic number, because the mean of its divisors is an integer number (47475032220).

Almost surely, 2^252145170646 is an apocalyptic number.

252145170646 is a deficient number, since it is larger than the sum of its proper divisors (127655087114).

252145170646 is a wasteful number, since it uses less digits than its factorization.

252145170646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 527500598.

The product of its (nonzero) digits is 403200, while the sum is 43.

The spelling of 252145170646 in words is "two hundred fifty-two billion, one hundred forty-five million, one hundred seventy thousand, six hundred forty-six".