1605260631460 has 24 divisors (see below), whose sum is σ = 3378726267840. Its totient is φ = 640641597024.

The previous prime is 1605260631451. The next prime is 1605260631493. The reversal of 1605260631460 is 641360625061.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91406974 + ... + 91424533.

It is an arithmetic number, because the mean of its divisors is an integer number (140780261160).

Almost surely, 2^{1605260631460} is an apocalyptic number.

1605260631460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1605260631460 is an abundant number, since it is smaller than the sum of its proper divisors (1773465636380).

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

1605260631460 is a wasteful number, since it uses less digits than its factorization.

1605260631460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182831955 (or 182831953 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 40.

The spelling of 1605260631460 in words is "one trillion, six hundred five billion, two hundred sixty million, six hundred thirty-one thousand, four hundred sixty".