2164497923446 has 8 divisors (see below), whose sum is σ = 3255093279360. Its totient is φ = 1079466830328.

The previous prime is 2164497923431. The next prime is 2164497923447. The reversal of 2164497923446 is 6443297944612.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2164497923447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1391064726 + ... + 1391066281.

It is an arithmetic number, because the mean of its divisors is an integer number (406886659920).

Almost surely, 2^{2164497923446} is an apocalyptic number.

2164497923446 is a deficient number, since it is larger than the sum of its proper divisors (1090595355914).

2164497923446 is a wasteful number, since it uses less digits than its factorization.

2164497923446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2782131398.

The product of its digits is 62705664, while the sum is 61.

The spelling of 2164497923446 in words is "two trillion, one hundred sixty-four billion, four hundred ninety-seven million, nine hundred twenty-three thousand, four hundred forty-six".