26063661 has 16 divisors (see below), whose sum is σ = 37650816. Its totient is φ = 15942336.

The previous prime is 26063647. The next prime is 26063671. The reversal of 26063661 is 16636062.

It is not a de Polignac number, because 26063661 - 2¹⁰ = 26062637 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26063621) 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, 4816 + ... + 8678.

It is an arithmetic number, because the mean of its divisors is an integer number (2353176).

Almost surely, 2^26063661 is an apocalyptic number.

It is an amenable number.

26063661 is a deficient number, since it is larger than the sum of its proper divisors (11587155).

26063661 is a wasteful number, since it uses less digits than its factorization.

26063661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4052.

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 26063661 is about 5105.2581717284. The cubic root of 26063661 is about 296.4911988227.

The spelling of 26063661 in words is "twenty-six million, sixty-three thousand, six hundred sixty-one".