155440502150004 has 18 divisors (see below), whose sum is σ = 392919047101490. Its totient is φ = 51813500716656.

The previous prime is 155440502149981. The next prime is 155440502150033. The reversal of 155440502150004 is 400051205044551.

155440502150004 is a `hidden beast` number, since 1 + 554 + 4 + 0 + 50 + 2 + 1 + 50 + 0 + 0 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 149217463011600 + 6223039138404 = 12215460^2 + 2494602^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 4317791726389 = 155440502150004 / (1 + 5 + 5 + 4 + 4 + 0 + 5 + 0 + 2 + 1 + 5 + 0 + 0 + 0 + 4).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2158895863159 + ... + 2158895863230.

Almost surely, 2^{155440502150004} is an apocalyptic number.

It is an amenable number.

155440502150004 is an abundant number, since it is smaller than the sum of its proper divisors (237478544951486).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

155440502150004 is a wasteful number, since it uses less digits than its factorization.

155440502150004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4317791726399 (or 4317791726394 counting only the distinct ones).

The product of its (nonzero) digits is 80000, while the sum is 36.

Adding to 155440502150004 its reverse (400051205044551), we get a palindrome (555491707194555).

The spelling of 155440502150004 in words is "one hundred fifty-five trillion, four hundred forty billion, five hundred two million, one hundred fifty thousand, four".