2163645255045 has 64 divisors (see below), whose sum is σ = 3803875464960. Its totient is φ = 1046226585600.

The previous prime is 2163645255041. The next prime is 2163645255073. The reversal of 2163645255045 is 5405525463612.

It is not a de Polignac number, because 2163645255045 - 2² = 2163645255041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2163645254985 and 2163645255003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2163645255041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1038576 + ... + 2325065.

It is an arithmetic number, because the mean of its divisors is an integer number (59435554140).

Almost surely, 2^{2163645255045} is an apocalyptic number.

It is an amenable number.

2163645255045 is a deficient number, since it is larger than the sum of its proper divisors (1640230209915).

2163645255045 is a wasteful number, since it uses less digits than its factorization.

2163645255045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3363766.

The product of its (nonzero) digits is 4320000, while the sum is 48.

The spelling of 2163645255045 in words is "two trillion, one hundred sixty-three billion, six hundred forty-five million, two hundred fifty-five thousand, forty-five".