1605380225296 has 15 divisors (see below), whose sum is σ = 3110434006071. Its totient is φ = 802687578576.

The previous prime is 1605380225263. The next prime is 1605380225327. The reversal of 1605380225296 is 6925220835061.

The square root of 1605380225296 is 1267036.

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

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 4909765 + ... + 5226523.

Almost surely, 2^{1605380225296} is an apocalyptic number.

1605380225296 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

1605380225296 is the 1267036-th square number.

It is an amenable number.

1605380225296 is a deficient number, since it is larger than the sum of its proper divisors (1505053780775).

1605380225296 is an frugal number, since it uses more digits than its factorization.

1605380225296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 633526 (or 316761 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 49.

Multiplying 1605380225296 by its sum of digits (49), we get a square (78663631039504 = 8869252²).

The spelling of 1605380225296 in words is "one trillion, six hundred five billion, three hundred eighty million, two hundred twenty-five thousand, two hundred ninety-six".