23661266626 has 4 divisors (see below), whose sum is σ = 35491899942. Its totient is φ = 11830633312.

The previous prime is 23661266623. The next prime is 23661266627. The reversal of 23661266626 is 62666216632.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 23623382601 + 37884025 = 153699^2 + 6155^2 .

It is a super-2 number, since 2×23661266626² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23661266623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5915316655 + ... + 5915316658.

Almost surely, 2^23661266626 is an apocalyptic number.

23661266626 is a deficient number, since it is larger than the sum of its proper divisors (11830633316).

23661266626 is a wasteful number, since it uses less digits than its factorization.

23661266626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11830633315.

The product of its digits is 1119744, while the sum is 46.

The spelling of 23661266626 in words is "twenty-three billion, six hundred sixty-one million, two hundred sixty-six thousand, six hundred twenty-six".