155543331052 has 24 divisors (see below), whose sum is σ = 298984896000. Its totient is φ = 70475009616.

The previous prime is 155543331049. The next prime is 155543331059. The reversal of 155543331052 is 250133345551.

It is not an unprimeable number, because it can be changed into a prime (155543331059) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44490052 + ... + 44493547.

It is an arithmetic number, because the mean of its divisors is an integer number (12457704000).

Almost surely, 2^155543331052 is an apocalyptic number.

It is an amenable number.

155543331052 is a deficient number, since it is larger than the sum of its proper divisors (143441564948).

155543331052 is a wasteful number, since it uses less digits than its factorization.

155543331052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88983645 (or 88983643 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 37.

The spelling of 155543331052 in words is "one hundred fifty-five billion, five hundred forty-three million, three hundred thirty-one thousand, fifty-two".