2145506050505 has 16 divisors (see below), whose sum is σ = 2728562734080. Its totient is φ = 1613953635072.

The previous prime is 2145506050489. The next prime is 2145506050543. The reversal of 2145506050505 is 5050506055412.

It is a cyclic number.

It is not a de Polignac number, because 2145506050505 - 2⁴ = 2145506050489 is a prime.

It is a super-2 number, since 2×2145506050505² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11518115 + ... + 11702904.

It is an arithmetic number, because the mean of its divisors is an integer number (170535170880).

Almost surely, 2^{2145506050505} is an apocalyptic number.

It is an amenable number.

2145506050505 is a deficient number, since it is larger than the sum of its proper divisors (583056683575).

2145506050505 is a wasteful number, since it uses less digits than its factorization.

2145506050505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23222128.

The product of its (nonzero) digits is 150000, while the sum is 38.

The spelling of 2145506050505 in words is "two trillion, one hundred forty-five billion, five hundred six million, fifty thousand, five hundred five".