155180528516 has 48 divisors (see below), whose sum is σ = 297012970800. Its totient is φ = 70512617472.

The previous prime is 155180528479. The next prime is 155180528627. The reversal of 155180528516 is 615825081551.

It can be written as a sum of positive squares in 8 ways, for example, as 51783553600 + 103396974916 = 227560^2 + 321554^2 .

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1006370 + ... + 1150278.

It is an arithmetic number, because the mean of its divisors is an integer number (6187770225).

Almost surely, 2^155180528516 is an apocalyptic number.

It is an amenable number.

155180528516 is a deficient number, since it is larger than the sum of its proper divisors (141832442284).

155180528516 is a wasteful number, since it uses less digits than its factorization.

155180528516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144248 (or 144246 counting only the distinct ones).

The product of its (nonzero) digits is 480000, while the sum is 47.

The spelling of 155180528516 in words is "one hundred fifty-five billion, one hundred eighty million, five hundred twenty-eight thousand, five hundred sixteen".