26161345064 has 32 divisors (see below), whose sum is σ = 49949291520. Its totient is φ = 12843699456.

The previous prime is 26161345057. The next prime is 26161345103. The reversal of 26161345064 is 46054316162.

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, 38504 + ... + 231959.

It is an arithmetic number, because the mean of its divisors is an integer number (1560915360).

Almost surely, 2^26161345064 is an apocalyptic number.

It is an amenable number.

26161345064 is a deficient number, since it is larger than the sum of its proper divisors (23787946456).

26161345064 is a wasteful number, since it uses less digits than its factorization.

26161345064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270689 (or 270685 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 38.

The spelling of 26161345064 in words is "twenty-six billion, one hundred sixty-one million, three hundred forty-five thousand, sixty-four".