507166722258 has 128 divisors (see below), whose sum is σ = 1238036244480. Its totient is φ = 135280627200.

The previous prime is 507166722203. The next prime is 507166722259. The reversal of 507166722258 is 852227661705.

It is a self number, because there is not a number n which added to its sum of digits gives 507166722258.

It is not an unprimeable number, because it can be changed into a prime (507166722259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 83125408 + ... + 83131508.

It is an arithmetic number, because the mean of its divisors is an integer number (9672158160).

Almost surely, 2^507166722258 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 507166722258, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (619018122240).

507166722258 is an abundant number, since it is smaller than the sum of its proper divisors (730869522222).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

507166722258 is a wasteful number, since it uses less digits than its factorization.

507166722258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7632.

The product of its (nonzero) digits is 2822400, while the sum is 51.

The spelling of 507166722258 in words is "five hundred seven billion, one hundred sixty-six million, seven hundred twenty-two thousand, two hundred fifty-eight".