2220165164386 has 16 divisors (see below), whose sum is σ = 3654088966584. Its totient is φ = 1005357809664.

The previous prime is 2220165164351. The next prime is 2220165164389. The reversal of 2220165164386 is 6834615610222.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1067644826361 + 1152520338025 = 1033269^2 + 1073555^2 .

It is a super-3 number, since 3×2220165164386³ (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (2220165164389) 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, 805573791 + ... + 805576546.

Almost surely, 2^{2220165164386} is an apocalyptic number.

2220165164386 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2220165164386 is a deficient number, since it is larger than the sum of its proper divisors (1433923802198).

2220165164386 is a wasteful number, since it uses less digits than its factorization.

2220165164386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1611150405.

The product of its (nonzero) digits is 829440, while the sum is 46.

The spelling of 2220165164386 in words is "two trillion, two hundred twenty billion, one hundred sixty-five million, one hundred sixty-four thousand, three hundred eighty-six".