265140436613445 has 24 divisors (see below), whose sum is σ = 461909633750136. Its totient is φ = 140690424567168.

The previous prime is 265140436613407. The next prime is 265140436613489. The reversal of 265140436613445 is 544316634041562.

265140436613445 is a `hidden beast` number, since 2 + 6 + 5 + 1 + 404 + 3 + 66 + 134 + 45 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 25910553438081 + 239229883175364 = 5090241^2 + 15467058^2 .

It is a de Polignac number, because none of the positive numbers 2^k-265140436613445 is a prime.

It is a super-2 number, since 2×265140436613445² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 265140436613391 and 265140436613400.

It is a congruent number.

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, 14954330482 + ... + 14954348211.

It is an arithmetic number, because the mean of its divisors is an integer number (19246234739589).

Almost surely, 2^{265140436613445} is an apocalyptic number.

It is an amenable number.

265140436613445 is a deficient number, since it is larger than the sum of its proper divisors (196769197136691).

265140436613445 is a wasteful number, since it uses less digits than its factorization.

265140436613445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29908678901 (or 29908678898 counting only the distinct ones).

The product of its (nonzero) digits is 24883200, while the sum is 54.

The spelling of 265140436613445 in words is "two hundred sixty-five trillion, one hundred forty billion, four hundred thirty-six million, six hundred thirteen thousand, four hundred forty-five".