26301631061661 has 32 divisors (see below), whose sum is σ = 37421615088000. Its totient is φ = 16374182922240.

The previous prime is 26301631061659. The next prime is 26301631061723. The reversal of 26301631061661 is 16616013610362.

It is not a de Polignac number, because 26301631061661 - 2¹ = 26301631061659 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26301631061621) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38740635 + ... + 39413703.

It is an arithmetic number, because the mean of its divisors is an integer number (1169425471500).

Almost surely, 2^{26301631061661} is an apocalyptic number.

It is an amenable number.

26301631061661 is a deficient number, since it is larger than the sum of its proper divisors (11119984026339).

26301631061661 is a wasteful number, since it uses less digits than its factorization.

26301631061661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 679069.

The product of its (nonzero) digits is 139968, while the sum is 42.

The spelling of 26301631061661 in words is "twenty-six trillion, three hundred one billion, six hundred thirty-one million, sixty-one thousand, six hundred sixty-one".