1305642556341 has 12 divisors (see below), whose sum is σ = 1967925012768. Its totient is φ = 832583658984.

The previous prime is 1305642556307. The next prime is 1305642556349. The reversal of 1305642556341 is 1436552465031.

It is a happy number.

1305642556341 is a `hidden beast` number, since 1 + 3 + 0 + 5 + 6 + 4 + 2 + 5 + 5 + 634 + 1 = 666.

It is not a de Polignac number, because 1305642556341 - 2⁹ = 1305642555829 is a prime.

It is a super-2 number, since 2×1305642556341² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1305642556349) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3153725775 + ... + 3153726188.

It is an arithmetic number, because the mean of its divisors is an integer number (163993751064).

Almost surely, 2^{1305642556341} is an apocalyptic number.

It is an amenable number.

1305642556341 is a deficient number, since it is larger than the sum of its proper divisors (662282456427).

1305642556341 is a wasteful number, since it uses less digits than its factorization.

1305642556341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6307451992 (or 6307451989 counting only the distinct ones).

The product of its (nonzero) digits is 1296000, while the sum is 45.

The spelling of 1305642556341 in words is "one trillion, three hundred five billion, six hundred forty-two million, five hundred fifty-six thousand, three hundred forty-one".