265644164142425 has 48 divisors (see below), whose sum is σ = 332645713656960. Its totient is φ = 210423225600000.

The previous prime is 265644164142397. The next prime is 265644164142431. The reversal of 265644164142425 is 524241461446562.

It is a de Polignac number, because none of the positive numbers 2^k-265644164142425 is a prime.

It is a super-2 number, since 2×265644164142425² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 38933627564 + ... + 38933634386.

It is an arithmetic number, because the mean of its divisors is an integer number (6930119034520).

Almost surely, 2^{265644164142425} is an apocalyptic number.

265644164142425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

265644164142425 is a deficient number, since it is larger than the sum of its proper divisors (67001549514535).

265644164142425 is a wasteful number, since it uses less digits than its factorization.

265644164142425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14514 (or 14509 counting only the distinct ones).

The product of its digits is 44236800, while the sum is 56.

The spelling of 265644164142425 in words is "two hundred sixty-five trillion, six hundred forty-four billion, one hundred sixty-four million, one hundred forty-two thousand, four hundred twenty-five".