2145661503143 has 8 divisors (see below), whose sum is σ = 2258689958400. Its totient is φ = 2032642938168.

The previous prime is 2145661503131. The next prime is 2145661503157. The reversal of 2145661503143 is 3413051665412.

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

It is not a de Polignac number, because 2145661503143 - 2³⁴ = 2128481633959 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 2145661503143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2145661503103) 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, 2025173 + ... + 2897006.

It is an arithmetic number, because the mean of its divisors is an integer number (282336244800).

Almost surely, 2^{2145661503143} is an apocalyptic number.

2145661503143 is a deficient number, since it is larger than the sum of its proper divisors (113028455257).

2145661503143 is a wasteful number, since it uses less digits than its factorization.

2145661503143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4945141.

The product of its (nonzero) digits is 259200, while the sum is 41.

The spelling of 2145661503143 in words is "two trillion, one hundred forty-five billion, six hundred sixty-one million, five hundred three thousand, one hundred forty-three".