10661353810 has 16 divisors (see below), whose sum is σ = 19852176600. Its totient is φ = 4117488256.

The previous prime is 10661353799. The next prime is 10661353817. The reversal of 10661353810 is 1835316601.

It can be written as a sum of positive squares in 4 ways, for example, as 9023290081 + 1638063729 = 94991^2 + 40473^2 .

It is a super-2 number, since 2×10661353810² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10661353817) 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, 18381355 + ... + 18381934.

Almost surely, 2^10661353810 is an apocalyptic number.

10661353810 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10661353810 is a deficient number, since it is larger than the sum of its proper divisors (9190822790).

10661353810 is a wasteful number, since it uses less digits than its factorization.

10661353810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36763325.

The product of its (nonzero) digits is 12960, while the sum is 34.

The spelling of 10661353810 in words is "ten billion, six hundred sixty-one million, three hundred fifty-three thousand, eight hundred ten".