155232144653 has 8 divisors (see below), whose sum is σ = 159585651960. Its totient is φ = 150886955520.

The previous prime is 155232144643. The next prime is 155232144679. The reversal of 155232144653 is 356441232551.

It can be written as a sum of positive squares in 4 ways, for example, as 7562563369 + 147669581284 = 86963^2 + 384278^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 155232144653 - 2¹⁰ = 155232143629 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 155232144653.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155232144643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2041688 + ... + 2116353.

It is an arithmetic number, because the mean of its divisors is an integer number (19948206495).

Almost surely, 2^155232144653 is an apocalyptic number.

It is an amenable number.

155232144653 is a deficient number, since it is larger than the sum of its proper divisors (4353507307).

155232144653 is a wasteful number, since it uses less digits than its factorization.

155232144653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4159087.

The product of its digits is 432000, while the sum is 41.

The spelling of 155232144653 in words is "one hundred fifty-five billion, two hundred thirty-two million, one hundred forty-four thousand, six hundred fifty-three".