10661738155 has 8 divisors (see below), whose sum is σ = 12851459712. Its totient is φ = 8491141248.

The previous prime is 10661738149. The next prime is 10661738167. The reversal of 10661738155 is 55183716601.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10661738155 is a prime.

It is a super-2 number, since 2×10661738155² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4779934 + ... + 4782163.

It is an arithmetic number, because the mean of its divisors is an integer number (1606432464).

Almost surely, 2^10661738155 is an apocalyptic number.

10661738155 is a deficient number, since it is larger than the sum of its proper divisors (2189721557).

10661738155 is an equidigital number, since it uses as much as digits as its factorization.

10661738155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9562325.

The product of its (nonzero) digits is 151200, while the sum is 43.

The spelling of 10661738155 in words is "ten billion, six hundred sixty-one million, seven hundred thirty-eight thousand, one hundred fifty-five".