155200645544 has 32 divisors (see below), whose sum is σ = 338209646400. Its totient is φ = 65387195520.

The previous prime is 155200645543. The next prime is 155200645583. The reversal of 155200645544 is 445546002551.

It is not an unprimeable number, because it can be changed into a prime (155200645541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23483477 + ... + 23490084.

It is an arithmetic number, because the mean of its divisors is an integer number (10569051450).

Almost surely, 2^155200645544 is an apocalyptic number.

155200645544 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

155200645544 is an abundant number, since it is smaller than the sum of its proper divisors (183009000856).

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

155200645544 is a wasteful number, since it uses less digits than its factorization.

155200645544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46973633 (or 46973629 counting only the distinct ones).

The product of its (nonzero) digits is 480000, while the sum is 41.

The spelling of 155200645544 in words is "one hundred fifty-five billion, two hundred million, six hundred forty-five thousand, five hundred forty-four".