5145665415 has 16 divisors (see below), whose sum is σ = 8981525376. Its totient is φ = 2494868000.

The previous prime is 5145665377. The next prime is 5145665419.

5145665415 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 5145665415 - 2¹² = 5145661319 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5145665419) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15592761 + ... + 15593090.

It is an arithmetic number, because the mean of its divisors is an integer number (561345336).

Almost surely, 2^5145665415 is an apocalyptic number.

5145665415 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

5145665415 is a deficient number, since it is larger than the sum of its proper divisors (3835859961).

5145665415 is a wasteful number, since it uses less digits than its factorization.

5145665415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31185870.

The product of its digits is 360000, while the sum is 42.

The square root of 5145665415 is about 71733.2936299456. The cubic root of 5145665415 is about 1726.4228730638.

The spelling of 5145665415 in words is "five billion, one hundred forty-five million, six hundred sixty-five thousand, four hundred fifteen".