155605060004 has 12 divisors (see below), whose sum is σ = 272311617228. Its totient is φ = 77801740800.

The previous prime is 155605060001. The next prime is 155605060021. The reversal of 155605060004 is 400060506551.

It can be written as a sum of positive squares in 2 ways, for example, as 100965062500 + 54639997504 = 317750^2 + 233752^2 .

It is not an unprimeable number, because it can be changed into a prime (155605060001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 667424 + ... + 869864.

It is an arithmetic number, because the mean of its divisors is an integer number (22692634769).

Almost surely, 2^155605060004 is an apocalyptic number.

It is an amenable number.

155605060004 is a deficient number, since it is larger than the sum of its proper divisors (116706557224).

155605060004 is a wasteful number, since it uses less digits than its factorization.

155605060004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394606 (or 394604 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 32.

Adding to 155605060004 its reverse (400060506551), we get a palindrome (555665566555).

The spelling of 155605060004 in words is "one hundred fifty-five billion, six hundred five million, sixty thousand, four".