265243304545416 has 48 divisors (see below), whose sum is σ = 718659421599600. Its totient is φ = 88378479346272.

The previous prime is 265243304545409. The next prime is 265243304545487. The reversal of 265243304545416 is 614545403342562.

265243304545416 is a `hidden beast` number, since 2 + 6 + 5 + 2 + 43 + 3 + 0 + 4 + 54 + 541 + 6 = 666.

It is a super-2 number, since 2×265243304545416² (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 11 ways as a sum of consecutive naturals, for example, 748894686 + ... + 749248781.

It is an arithmetic number, because the mean of its divisors is an integer number (14972071283325).

Almost surely, 2^{265243304545416} is an apocalyptic number.

It is an amenable number.

265243304545416 is an abundant number, since it is smaller than the sum of its proper divisors (453416117054184).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

265243304545416 is a wasteful number, since it uses less digits than its factorization.

265243304545416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1498145938 (or 1498145931 counting only the distinct ones).

The product of its (nonzero) digits is 41472000, while the sum is 54.

Adding to 265243304545416 its reverse (614545403342562), we get a palindrome (879788707887978).

The spelling of 265243304545416 in words is "two hundred sixty-five trillion, two hundred forty-three billion, three hundred four million, five hundred forty-five thousand, four hundred sixteen".