265554640140 has 24 divisors (see below), whose sum is σ = 743552992560. Its totient is φ = 70814570688.

The previous prime is 265554640121. The next prime is 265554640147. The reversal of 265554640140 is 41046455562.

265554640140 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 265554640092 and 265554640101.

It is not an unprimeable number, because it can be changed into a prime (265554640147) 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 7 ways as a sum of consecutive naturals, for example, 2212955275 + ... + 2212955394.

It is an arithmetic number, because the mean of its divisors is an integer number (30981374690).

Almost surely, 2^265554640140 is an apocalyptic number.

265554640140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

265554640140 is an abundant number, since it is smaller than the sum of its proper divisors (477998352420).

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

265554640140 is a wasteful number, since it uses less digits than its factorization.

265554640140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4425910681 (or 4425910679 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 42.

The spelling of 265554640140 in words is "two hundred sixty-five billion, five hundred fifty-four million, six hundred forty thousand, one hundred forty".