155554550522040 has 128 divisors (see below), whose sum is σ = 471214962432000. Its totient is φ = 41078334696960.

The previous prime is 155554550522011. The next prime is 155554550522051. The reversal of 155554550522040 is 40225055455551.

155554550522040 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×155554550522040² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7223592 + ... + 19060151.

It is an arithmetic number, because the mean of its divisors is an integer number (3681366894000).

Almost surely, 2^{155554550522040} is an apocalyptic number.

155554550522040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155554550522040 is an abundant number, since it is smaller than the sum of its proper divisors (315660411909960).

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

155554550522040 is a wasteful number, since it uses less digits than its factorization.

155554550522040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26284237 (or 26284233 counting only the distinct ones).

The product of its (nonzero) digits is 5000000, while the sum is 48.

The spelling of 155554550522040 in words is "one hundred fifty-five trillion, five hundred fifty-four billion, five hundred fifty million, five hundred twenty-two thousand, forty".