1260240301665 has 24 divisors (see below), whose sum is σ = 2184531448320. Its totient is φ = 672092799264.

The previous prime is 1260240301643. The next prime is 1260240301673. The reversal of 1260240301665 is 5661030420621.

1260240301665 is a `hidden beast` number, since 1 + 2 + 602 + 4 + 0 + 30 + 16 + 6 + 5 = 666.

It is not a de Polignac number, because 1260240301665 - 2⁶ = 1260240301601 is a prime.

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, 139584 + ... + 1593726.

It is an arithmetic number, because the mean of its divisors is an integer number (91022143680).

Almost surely, 2^{1260240301665} is an apocalyptic number.

1260240301665 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1260240301665 is a deficient number, since it is larger than the sum of its proper divisors (924291146655).

1260240301665 is a wasteful number, since it uses less digits than its factorization.

1260240301665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1473413 (or 1473410 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The spelling of 1260240301665 in words is "one trillion, two hundred sixty billion, two hundred forty million, three hundred one thousand, six hundred sixty-five".