2165376514752 has 168 divisors, whose sum is σ = 7021677429312. Its totient is φ = 656174649600.

The previous prime is 2165376514699. The next prime is 2165376514771. The reversal of 2165376514752 is 2574156735612.

It is a happy number.

2165376514752 is a `hidden beast` number, since 2 + 1 + 6 + 5 + 3 + 76 + 514 + 7 + 52 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 6157774 + ... + 6499917.

It is an arithmetic number, because the mean of its divisors is an integer number (41795698984).

Almost surely, 2^{2165376514752} is an apocalyptic number.

2165376514752 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2165376514752 is an abundant number, since it is smaller than the sum of its proper divisors (4856300914560).

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

2165376514752 is a wasteful number, since it uses less digits than its factorization.

2165376514752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12657729 (or 12657707 counting only the distinct ones).

The product of its digits is 10584000, while the sum is 54.

The spelling of 2165376514752 in words is "two trillion, one hundred sixty-five billion, three hundred seventy-six million, five hundred fourteen thousand, seven hundred fifty-two".