10501563666 has 16 divisors (see below), whose sum is σ = 22912502688. Its totient is φ = 3182292000.

The previous prime is 10501563647. The next prime is 10501563679. The reversal of 10501563666 is 66636510501.

It is a super-2 number, since 2×10501563666² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

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, 79557235 + ... + 79557366.

It is an arithmetic number, because the mean of its divisors is an integer number (1432031418).

Almost surely, 2^10501563666 is an apocalyptic number.

10501563666 is an abundant number, since it is smaller than the sum of its proper divisors (12410939022).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10501563666 is a wasteful number, since it uses less digits than its factorization.

10501563666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159114617.

The product of its (nonzero) digits is 97200, while the sum is 39.

The spelling of 10501563666 in words is "ten billion, five hundred one million, five hundred sixty-three thousand, six hundred sixty-six".