15155543453 has 4 divisors (see below), whose sum is σ = 15167284128. Its totient is φ = 15143802780.

The previous prime is 15155543449. The next prime is 15155543467. The reversal of 15155543453 is 35434555151.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 35434555151 = 809 ⋅43800439.

It is a cyclic number.

It is not a de Polignac number, because 15155543453 - 2² = 15155543449 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 15155543453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15155543423) 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, 5868401 + ... + 5870982.

It is an arithmetic number, because the mean of its divisors is an integer number (3791821032).

Almost surely, 2^15155543453 is an apocalyptic number.

It is an amenable number.

15155543453 is a deficient number, since it is larger than the sum of its proper divisors (11740675).

15155543453 is a wasteful number, since it uses less digits than its factorization.

15155543453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11740674.

The product of its digits is 450000, while the sum is 41.

The spelling of 15155543453 in words is "fifteen billion, one hundred fifty-five million, five hundred forty-three thousand, four hundred fifty-three".