10661553155 has 8 divisors (see below), whose sum is σ = 13956942384. Its totient is φ = 7753856800.

The previous prime is 10661553131. The next prime is 10661553167. The reversal of 10661553155 is 55135516601.

10661553155 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10661553155 - 2²⁰ = 10660504579 is a prime.

It is a super-2 number, since 2×10661553155² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96923156 + ... + 96923265.

It is an arithmetic number, because the mean of its divisors is an integer number (1744617798).

Almost surely, 2^10661553155 is an apocalyptic number.

10661553155 is a deficient number, since it is larger than the sum of its proper divisors (3295389229).

10661553155 is a wasteful number, since it uses less digits than its factorization.

10661553155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193846437.

The product of its (nonzero) digits is 67500, while the sum is 38.

The spelling of 10661553155 in words is "ten billion, six hundred sixty-one million, five hundred fifty-three thousand, one hundred fifty-five".