1816182084964 has 81 divisors (see below), whose sum is σ = 3657167196417. Its totient is φ = 788671024128.

The previous prime is 1816182084923. The next prime is 1816182084979. The reversal of 1816182084964 is 4694802816181.

The square root of 1816182084964 is 1347658.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 13 ways, for example, as 1714114614564 + 102067470400 = 1309242^2 + 319480^2 .

It is a super-2 number, since 2×1816182084964² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1816182084899 and 1816182084908.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 595663312 + ... + 595666360.

Almost surely, 2^{1816182084964} is an apocalyptic number.

1816182084964 is the 1347658-th square number.

It is an amenable number.

1816182084964 is an abundant number, since it is smaller than the sum of its proper divisors (1840985111453).

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

1816182084964 is an equidigital number, since it uses as much as digits as its factorization.

1816182084964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6162 (or 3081 counting only the distinct ones).

The product of its (nonzero) digits is 5308416, while the sum is 58.

The spelling of 1816182084964 in words is "one trillion, eight hundred sixteen billion, one hundred eighty-two million, eighty-four thousand, nine hundred sixty-four".