255165849940 has 12 divisors (see below), whose sum is σ = 535848284916. Its totient is φ = 102066339968.

The previous prime is 255165849931. The next prime is 255165849949. The reversal of 255165849940 is 49948561552.

255165849940 is digitally balanced in base 3, 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 (255165849931) and next prime (255165849949).

It can be written as a sum of positive squares in 2 ways, for example, as 160860353476 + 94305496464 = 401074^2 + 307092^2 .

It is a super-2 number, since 2×255165849940² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255165849949) 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, 6379146229 + ... + 6379146268.

It is an arithmetic number, because the mean of its divisors is an integer number (44654023743).

Almost surely, 2^255165849940 is an apocalyptic number.

255165849940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

255165849940 is an abundant number, since it is smaller than the sum of its proper divisors (280682434976).

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

255165849940 is a wasteful number, since it uses less digits than its factorization.

255165849940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12758292506 (or 12758292504 counting only the distinct ones).

The product of its (nonzero) digits is 15552000, while the sum is 58.

The spelling of 255165849940 in words is "two hundred fifty-five billion, one hundred sixty-five million, eight hundred forty-nine thousand, nine hundred forty".