2164631032145 has 32 divisors (see below), whose sum is σ = 2763871165440. Its totient is φ = 1621836380160.

The previous prime is 2164631032079. The next prime is 2164631032163. The reversal of 2164631032145 is 5412301364612.

It is not a de Polignac number, because 2164631032145 - 2²⁰ = 2164629983569 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2164631032099 and 2164631032108.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 46587125 + ... + 46633565.

It is an arithmetic number, because the mean of its divisors is an integer number (86370973920).

Almost surely, 2^{2164631032145} is an apocalyptic number.

It is an amenable number.

2164631032145 is a deficient number, since it is larger than the sum of its proper divisors (599240133295).

2164631032145 is a wasteful number, since it uses less digits than its factorization.

2164631032145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49145.

The product of its (nonzero) digits is 103680, while the sum is 38.

Adding to 2164631032145 its reverse (5412301364612), we get a palindrome (7576932396757).

The spelling of 2164631032145 in words is "two trillion, one hundred sixty-four billion, six hundred thirty-one million, thirty-two thousand, one hundred forty-five".