255640161335132 has 24 divisors (see below), whose sum is σ = 538189813338240. Its totient is φ = 103793749714800.

The previous prime is 255640161335123. The next prime is 255640161335171. The reversal of 255640161335132 is 231533161046552.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 240263308994 + ... + 240263310057.

It is an arithmetic number, because the mean of its divisors is an integer number (22424575555760).

Almost surely, 2^{255640161335132} is an apocalyptic number.

It is an amenable number.

255640161335132 is an abundant number, since it is smaller than the sum of its proper divisors (282549652003108).

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

255640161335132 is a wasteful number, since it uses less digits than its factorization.

255640161335132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480526619081 (or 480526619079 counting only the distinct ones).

The product of its (nonzero) digits is 1944000, while the sum is 47.

The spelling of 255640161335132 in words is "two hundred fifty-five trillion, six hundred forty billion, one hundred sixty-one million, three hundred thirty-five thousand, one hundred thirty-two".