265051651556061 has 12 divisors (see below), whose sum is σ = 382868172972480. Its totient is φ = 176693814549000.

The previous prime is 265051651556053. The next prime is 265051651556063. The reversal of 265051651556061 is 160655156150562.

265051651556061 is a `hidden beast` number, since 2 + 6 + 5 + 0 + 5 + 1 + 6 + 5 + 15 + 560 + 61 = 666.

It is not a de Polignac number, because 265051651556061 - 2³ = 265051651556053 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 265051651555989 and 265051651556007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (265051651556063) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 606976981 + ... + 607413498.

It is an arithmetic number, because the mean of its divisors is an integer number (31905681081040).

Almost surely, 2^{265051651556061} is an apocalyptic number.

It is an amenable number.

265051651556061 is a deficient number, since it is larger than the sum of its proper divisors (117816521416419).

265051651556061 is a wasteful number, since it uses less digits than its factorization.

265051651556061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1214414736 (or 1214414733 counting only the distinct ones).

The product of its (nonzero) digits is 8100000, while the sum is 54.

The spelling of 265051651556061 in words is "two hundred sixty-five trillion, fifty-one billion, six hundred fifty-one million, five hundred fifty-six thousand, sixty-one".