1306250504655 has 16 divisors (see below), whose sum is σ = 2105036787840. Its totient is φ = 691654942368.

The previous prime is 1306250504653. The next prime is 1306250504681. The reversal of 1306250504655 is 5564050526031.

It is not a de Polignac number, because 1306250504655 - 2¹ = 1306250504653 is a prime.

It is a super-2 number, since 2×1306250504655² (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 (1306250504653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 313247437 + ... + 313251606.

It is an arithmetic number, because the mean of its divisors is an integer number (131564799240).

Almost surely, 2^{1306250504655} is an apocalyptic number.

1306250504655 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1306250504655 is a deficient number, since it is larger than the sum of its proper divisors (798786283185).

1306250504655 is a wasteful number, since it uses less digits than its factorization.

1306250504655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 626499190.

The product of its (nonzero) digits is 540000, while the sum is 42.

The spelling of 1306250504655 in words is "one trillion, three hundred six billion, two hundred fifty million, five hundred four thousand, six hundred fifty-five".