26601501161601 has 16 divisors (see below), whose sum is σ = 39410135123520. Its totient is φ = 17734107409920.

The previous prime is 26601501161593. The next prime is 26601501161611. The reversal of 26601501161601 is 10616110510662.

26601501161601 is a `hidden beast` number, since 26 + 6 + 0 + 1 + 5 + 0 + 11 + 616 + 0 + 1 = 666.

It is not a de Polignac number, because 26601501161601 - 2³ = 26601501161593 is a prime.

It is not an unprimeable number, because it can be changed into a prime (26601501161611) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4132335 + ... + 8383268.

It is an arithmetic number, because the mean of its divisors is an integer number (2463133445220).

Almost surely, 2^{26601501161601} is an apocalyptic number.

It is an amenable number.

26601501161601 is a deficient number, since it is larger than the sum of its proper divisors (12808633961919).

26601501161601 is a wasteful number, since it uses less digits than its factorization.

26601501161601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12594333 (or 12594327 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The spelling of 26601501161601 in words is "twenty-six trillion, six hundred one billion, five hundred one million, one hundred sixty-one thousand, six hundred one".