255166770 has 96 divisors (see below), whose sum is σ = 685224000. Its totient is φ = 60632064.

The previous prime is 255166759. The next prime is 255166781. The reversal of 255166770 is 77661552.

255166770 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (255166759) and next prime (255166781).

It is a super-2 number, since 2×255166770² = 130220161024465800, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 163956 + ... + 165504.

It is an arithmetic number, because the mean of its divisors is an integer number (7137750).

Almost surely, 2^255166770 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 255166770, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (342612000).

255166770 is an abundant number, since it is smaller than the sum of its proper divisors (430057230).

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

255166770 is a wasteful number, since it uses less digits than its factorization.

255166770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1612 (or 1595 counting only the distinct ones).

The product of its (nonzero) digits is 88200, while the sum is 39.

The square root of 255166770 is about 15973.9403404420. The cubic root of 255166770 is about 634.2707813133.

The spelling of 255166770 in words is "two hundred fifty-five million, one hundred sixty-six thousand, seven hundred seventy".