26605162556 has 24 divisors (see below), whose sum is σ = 53214981120. Its totient is φ = 11401214832.

The previous prime is 26605162543. The next prime is 26605162567. The reversal of 26605162556 is 65526150662.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 348281 + ... + 417743.

It is an arithmetic number, because the mean of its divisors is an integer number (2217290880).

Almost surely, 2^26605162556 is an apocalyptic number.

It is an amenable number.

26605162556 is an abundant number, since it is smaller than the sum of its proper divisors (26609818564).

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

26605162556 is a wasteful number, since it uses less digits than its factorization.

26605162556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83153 (or 83151 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 44.

The spelling of 26605162556 in words is "twenty-six billion, six hundred five million, one hundred sixty-two thousand, five hundred fifty-six".