155255520004 has 36 divisors (see below), whose sum is σ = 294625209060. Its totient is φ = 71553955200.

The previous prime is 155255520001. The next prime is 155255520029. The reversal of 155255520004 is 400025552551.

It can be written as a sum of positive squares in 6 ways, for example, as 13241104900 + 142014415104 = 115070^2 + 376848^2 .

It is not an unprimeable number, because it can be changed into a prime (155255520001) 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 11 ways as a sum of consecutive naturals, for example, 310062 + ... + 637690.

It is an arithmetic number, because the mean of its divisors is an integer number (8184033585).

Almost surely, 2^155255520004 is an apocalyptic number.

It is an amenable number.

155255520004 is a deficient number, since it is larger than the sum of its proper divisors (139369689056).

155255520004 is a wasteful number, since it uses less digits than its factorization.

155255520004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328360 (or 328345 counting only the distinct ones).

The product of its (nonzero) digits is 50000, while the sum is 34.

The spelling of 155255520004 in words is "one hundred fifty-five billion, two hundred fifty-five million, five hundred twenty thousand, four".