15545441453 has 4 divisors (see below), whose sum is σ = 15555116640. Its totient is φ = 15535766268.

The previous prime is 15545441449. The next prime is 15545441473. The reversal of 15545441453 is 35414454551.

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.

It is a cyclic number.

It is not a de Polignac number, because 15545441453 - 2² = 15545441449 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 15545441453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15545441423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4835183 + ... + 4838396.

It is an arithmetic number, because the mean of its divisors is an integer number (3888779160).

Almost surely, 2^15545441453 is an apocalyptic number.

It is an amenable number.

15545441453 is a deficient number, since it is larger than the sum of its proper divisors (9675187).

15545441453 is an equidigital number, since it uses as much as digits as its factorization.

15545441453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9675186.

The product of its digits is 480000, while the sum is 41.

The spelling of 15545441453 in words is "fifteen billion, five hundred forty-five million, four hundred forty-one thousand, four hundred fifty-three".