155445531052 has 48 divisors (see below), whose sum is σ = 312800866560. Its totient is φ = 66210685632.

The previous prime is 155445531037. The next prime is 155445531113. The reversal of 155445531052 is 250135544551.

It is a junction number, because it is equal to n+sod(n) for n = 155445530996 and 155445531014.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10282083 + ... + 10297189.

It is an arithmetic number, because the mean of its divisors is an integer number (6516684720).

Almost surely, 2^155445531052 is an apocalyptic number.

It is an amenable number.

155445531052 is an abundant number, since it is smaller than the sum of its proper divisors (157355335508).

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

155445531052 is a wasteful number, since it uses less digits than its factorization.

155445531052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17350 (or 17348 counting only the distinct ones).

The product of its (nonzero) digits is 300000, while the sum is 40.

The spelling of 155445531052 in words is "one hundred fifty-five billion, four hundred forty-five million, five hundred thirty-one thousand, fifty-two".