2145545535503 has 8 divisors (see below), whose sum is σ = 2258610169200. Its totient is φ = 2032495020288.

The previous prime is 2145545535499. The next prime is 2145545535557. The reversal of 2145545535503 is 3055355455412.

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 2145545535503 - 2² = 2145545535499 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2145545235503) 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, 3216968 + ... + 3826221.

It is an arithmetic number, because the mean of its divisors is an integer number (282326271150).

Almost surely, 2^{2145545535503} is an apocalyptic number.

2145545535503 is a deficient number, since it is larger than the sum of its proper divisors (113064633697).

2145545535503 is a wasteful number, since it uses less digits than its factorization.

2145545535503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7059241.

The product of its (nonzero) digits is 4500000, while the sum is 47.

The spelling of 2145545535503 in words is "two trillion, one hundred forty-five billion, five hundred forty-five million, five hundred thirty-five thousand, five hundred three".