10665653506 has 16 divisors (see below), whose sum is σ = 16344996480. Its totient is φ = 5217406480.

The previous prime is 10665653503. The next prime is 10665653507. The reversal of 10665653506 is 60535656601.

It is a super-2 number, since 2×10665653506² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10665653501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 249105 + ... + 288763.

It is an arithmetic number, because the mean of its divisors is an integer number (1021562280).

Almost surely, 2^10665653506 is an apocalyptic number.

10665653506 is a deficient number, since it is larger than the sum of its proper divisors (5679342974).

10665653506 is a wasteful number, since it uses less digits than its factorization.

10665653506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42569.

The product of its (nonzero) digits is 486000, while the sum is 43.

The spelling of 10665653506 in words is "ten billion, six hundred sixty-five million, six hundred fifty-three thousand, five hundred six".