10505666252 has 6 divisors (see below), whose sum is σ = 18384915948. Its totient is φ = 5252833124.

The previous prime is 10505666233. The next prime is 10505666293. The reversal of 10505666252 is 25266650501.

It is a happy number.

It is a super-2 number, since 2×10505666252² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1313208278 + ... + 1313208285.

It is an arithmetic number, because the mean of its divisors is an integer number (3064152658).

Almost surely, 2^10505666252 is an apocalyptic number.

It is an amenable number.

10505666252 is a deficient number, since it is larger than the sum of its proper divisors (7879249696).

10505666252 is a wasteful number, since it uses less digits than its factorization.

10505666252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2626416567 (or 2626416565 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 38.

The spelling of 10505666252 in words is "ten billion, five hundred five million, six hundred sixty-six thousand, two hundred fifty-two".