2164874486544 has 480 divisors, whose sum is σ = 8026421704704. Its totient is φ = 527345233920.

The previous prime is 2164874486539. The next prime is 2164874486563. The reversal of 2164874486544 is 4456844784612.

2164874486544 is a `hidden beast` number, since 2 + 1 + 6 + 4 + 8 + 7 + 4 + 4 + 86 + 544 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 53324077 + ... + 53364659.

Almost surely, 2^{2164874486544} is an apocalyptic number.

2164874486544 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2164874486544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4013210852352).

2164874486544 is an abundant number, since it is smaller than the sum of its proper divisors (5861547218160).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2164874486544 is a wasteful number, since it uses less digits than its factorization.

2164874486544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40915 (or 40906 counting only the distinct ones).

The product of its digits is 165150720, while the sum is 63.

The spelling of 2164874486544 in words is "two trillion, one hundred sixty-four billion, eight hundred seventy-four million, four hundred eighty-six thousand, five hundred forty-four".