10661154327 has 12 divisors (see below), whose sum is σ = 16068986544. Its totient is φ = 6798417120.

The previous prime is 10661154307. The next prime is 10661154349. The reversal of 10661154327 is 72345116601.

10661154327 is a `hidden beast` number, since 1 + 0 + 6 + 611 + 5 + 4 + 32 + 7 = 666.

It is not a de Polignac number, because 10661154327 - 2⁶ = 10661154263 is a prime.

It is a super-2 number, since 2×10661154327² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10661154291 and 10661154300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10661154307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25751374 + ... + 25751787.

It is an arithmetic number, because the mean of its divisors is an integer number (1339082212).

Almost surely, 2^10661154327 is an apocalyptic number.

10661154327 is a deficient number, since it is larger than the sum of its proper divisors (5407832217).

10661154327 is a wasteful number, since it uses less digits than its factorization.

10661154327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51503190 (or 51503187 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The spelling of 10661154327 in words is "ten billion, six hundred sixty-one million, one hundred fifty-four thousand, three hundred twenty-seven".