2164423105625 has 40 divisors (see below), whose sum is σ = 2950934273760. Its totient is φ = 1573916400000.

The previous prime is 2164423105567. The next prime is 2164423105631. The reversal of 2164423105625 is 5265013244612.

It is a de Polignac number, because none of the positive numbers 2^k-2164423105625 is a prime.

It is a super-3 number, since 3×2164423105625³ (a number of 38 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 67434581 + ... + 67466669.

It is an arithmetic number, because the mean of its divisors is an integer number (73773356844).

Almost surely, 2^{2164423105625} is an apocalyptic number.

2164423105625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2164423105625 is a deficient number, since it is larger than the sum of its proper divisors (786511168135).

2164423105625 is an equidigital number, since it uses as much as digits as its factorization.

2164423105625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41931 (or 41916 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 41.

The spelling of 2164423105625 in words is "two trillion, one hundred sixty-four billion, four hundred twenty-three million, one hundred five thousand, six hundred twenty-five".