2145004411345 has 16 divisors (see below), whose sum is σ = 2586782304000. Its totient is φ = 1707496674688.

The previous prime is 2145004411337. The next prime is 2145004411351. The reversal of 2145004411345 is 5431144005412.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2145004411345 - 2³ = 2145004411337 is a prime.

It is a super-3 number, since 3×2145004411345³ (a number of 38 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2145004411345.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 844086 + ... + 2236624.

It is an arithmetic number, because the mean of its divisors is an integer number (161673894000).

Almost surely, 2^{2145004411345} is an apocalyptic number.

It is an amenable number.

2145004411345 is a deficient number, since it is larger than the sum of its proper divisors (441777892655).

2145004411345 is a wasteful number, since it uses less digits than its factorization.

2145004411345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1394072.

The product of its (nonzero) digits is 38400, while the sum is 34.

Adding to 2145004411345 its reverse (5431144005412), we get a palindrome (7576148416757).

The spelling of 2145004411345 in words is "two trillion, one hundred forty-five billion, four million, four hundred eleven thousand, three hundred forty-five".