1305506641406 has 192 divisors, whose sum is σ = 2422269577728. Its totient is φ = 524392704000.

The previous prime is 1305506641399. The next prime is 1305506641421. The reversal of 1305506641406 is 6041466055031.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2286351101 + ... + 2286351671.

It is an arithmetic number, because the mean of its divisors is an integer number (12615987384).

Almost surely, 2^{1305506641406} is an apocalyptic number.

1305506641406 is a deficient number, since it is larger than the sum of its proper divisors (1116762936322).

1305506641406 is a wasteful number, since it uses less digits than its factorization.

1305506641406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1039 (or 1028 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 41.

The spelling of 1305506641406 in words is "one trillion, three hundred five billion, five hundred six million, six hundred forty-one thousand, four hundred six".