155011500004 has 6 divisors (see below), whose sum is σ = 271270125014. Its totient is φ = 77505750000.

The previous prime is 155011500001. The next prime is 155011500043. The reversal of 155011500004 is 400005110551.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 129526570404 + 25484929600 = 359898^2 + 159640^2 .

It is not an unprimeable number, because it can be changed into a prime (155011500001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19376437497 + ... + 19376437504.

Almost surely, 2^155011500004 is an apocalyptic number.

It is an amenable number.

155011500004 is a deficient number, since it is larger than the sum of its proper divisors (116258625010).

155011500004 is a wasteful number, since it uses less digits than its factorization.

155011500004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38752875005 (or 38752875003 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 22.

Adding to 155011500004 its reverse (400005110551), we get a palindrome (555016610555).

The spelling of 155011500004 in words is "one hundred fifty-five billion, eleven million, five hundred thousand, four".