10661310375 has 32 divisors (see below), whose sum is σ = 17818714368. Its totient is φ = 5660938400.

The previous prime is 10661310367. The next prime is 10661310481. The reversal of 10661310375 is 57301316601.

It is a happy number.

It is not a de Polignac number, because 10661310375 - 2³ = 10661310367 is a prime.

It is a super-2 number, since 2×10661310375² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22504 + ... + 147746.

It is an arithmetic number, because the mean of its divisors is an integer number (556834824).

Almost surely, 2^10661310375 is an apocalyptic number.

10661310375 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

10661310375 is a deficient number, since it is larger than the sum of its proper divisors (7157403993).

10661310375 is a wasteful number, since it uses less digits than its factorization.

10661310375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125488 (or 125478 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 33.

Adding to 10661310375 its reverse (57301316601), we get a palindrome (67962626976).

The spelling of 10661310375 in words is "ten billion, six hundred sixty-one million, three hundred ten thousand, three hundred seventy-five".