155545503332 has 6 divisors (see below), whose sum is σ = 272204630838. Its totient is φ = 77772751664.

The previous prime is 155545503331. The next prime is 155545503371. The reversal of 155545503332 is 233305545551.

It can be written as a sum of positive squares in only one way, i.e., 150114402916 + 5431100416 = 387446^2 + 73696^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 155545503332.

It is not an unprimeable number, because it can be changed into a prime (155545503331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19443187913 + ... + 19443187920.

It is an arithmetic number, because the mean of its divisors is an integer number (45367438473).

Almost surely, 2^155545503332 is an apocalyptic number.

It is an amenable number.

155545503332 is a deficient number, since it is larger than the sum of its proper divisors (116659127506).

155545503332 is a wasteful number, since it uses less digits than its factorization.

155545503332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38886375837 (or 38886375835 counting only the distinct ones).

The product of its (nonzero) digits is 675000, while the sum is 41.

The spelling of 155545503332 in words is "one hundred fifty-five billion, five hundred forty-five million, five hundred three thousand, three hundred thirty-two".