10661554036 has 12 divisors (see below), whose sum is σ = 21323108128. Its totient is φ = 4569237432.

The previous prime is 10661554019. The next prime is 10661554103. The reversal of 10661554036 is 63045516601.

10661554036 is an admirable number.

It is a super-2 number, since 2×10661554036² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10661553986 and 10661554004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 190384866 + ... + 190384921.

Almost surely, 2^10661554036 is an apocalyptic number.

It is an amenable number.

10661554036 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

10661554036 is a wasteful number, since it uses less digits than its factorization.

10661554036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380769798 (or 380769796 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 37.

The spelling of 10661554036 in words is "ten billion, six hundred sixty-one million, five hundred fifty-four thousand, thirty-six".