10661533434 has 48 divisors (see below), whose sum is σ = 23650570944. Its totient is φ = 3469233600.

The previous prime is 10661533433. The next prime is 10661533451. The reversal of 10661533434 is 43433516601.

10661533434 is a `hidden beast` number, since 1 + 0 + 6 + 615 + 3 + 3 + 4 + 34 = 666.

It is a super-2 number, since 2×10661533434² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10661533433) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2095774 + ... + 2100854.

It is an arithmetic number, because the mean of its divisors is an integer number (492720228).

Almost surely, 2^10661533434 is an apocalyptic number.

10661533434 is an abundant number, since it is smaller than the sum of its proper divisors (12989037510).

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

10661533434 is a wasteful number, since it uses less digits than its factorization.

10661533434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7843 (or 7840 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 36.

The spelling of 10661533434 in words is "ten billion, six hundred sixty-one million, five hundred thirty-three thousand, four hundred thirty-four".