1605314234020 has 72 divisors (see below), whose sum is σ = 4152232994616. Its totient is φ = 518017360896.

The previous prime is 1605314234011. The next prime is 1605314234057. The reversal of 1605314234020 is 204324135061.

It can be written as a sum of positive squares in 4 ways, for example, as 442988749476 + 1162325484544 = 665574^2 + 1078112^2 .

It is a super-3 number, since 3×1605314234020³ (a number of 38 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 48162039 + ... + 48195358.

It is an arithmetic number, because the mean of its divisors is an integer number (57669902703).

Almost surely, 2^{1605314234020} is an apocalyptic number.

1605314234020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1605314234020 is an abundant number, since it is smaller than the sum of its proper divisors (2546918760596).

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

1605314234020 is a wasteful number, since it uses less digits than its factorization.

1605314234020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96357437 (or 96357428 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

Adding to 1605314234020 its reverse (204324135061), we get a palindrome (1809638369081).

The spelling of 1605314234020 in words is "one trillion, six hundred five billion, three hundred fourteen million, two hundred thirty-four thousand, twenty".