155545025140 has 48 divisors (see below), whose sum is σ = 348098591232. Its totient is φ = 58246639616.

The previous prime is 155545025081. The next prime is 155545025147. The reversal of 155545025140 is 41520545551.

155545025140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 155545025140.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155545025147) 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 15 ways as a sum of consecutive naturals, for example, 3575629 + ... + 3618868.

It is an arithmetic number, because the mean of its divisors is an integer number (7252053984).

Almost surely, 2^155545025140 is an apocalyptic number.

155545025140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155545025140 is an abundant number, since it is smaller than the sum of its proper divisors (192553566092).

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

155545025140 is a wasteful number, since it uses less digits than its factorization.

155545025140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7194576 (or 7194574 counting only the distinct ones).

The product of its (nonzero) digits is 100000, while the sum is 37.

The spelling of 155545025140 in words is "one hundred fifty-five billion, five hundred forty-five million, twenty-five thousand, one hundred forty".