2165281878062 has 16 divisors (see below), whose sum is σ = 3259518684912. Its totient is φ = 1078775929920.

The previous prime is 2165281878061. The next prime is 2165281878079. The reversal of 2165281878062 is 2608781825612.

It is a super-2 number, since 2×2165281878062² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2165281877989 and 2165281878007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2165281878061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21081512 + ... + 21183972.

It is an arithmetic number, because the mean of its divisors is an integer number (203719917807).

Almost surely, 2^{2165281878062} is an apocalyptic number.

2165281878062 is a deficient number, since it is larger than the sum of its proper divisors (1094236806850).

2165281878062 is a wasteful number, since it uses less digits than its factorization.

2165281878062 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140083.

The product of its (nonzero) digits is 5160960, while the sum is 56.

The spelling of 2165281878062 in words is "two trillion, one hundred sixty-five billion, two hundred eighty-one million, eight hundred seventy-eight thousand, sixty-two".