1061666363 has 16 divisors (see below), whose sum is σ = 1137628800. Its totient is φ = 987857280.

The previous prime is 1061666357. The next prime is 1061666369. The reversal of 1061666363 is 3636661601.

It is an interprime number because it is at equal distance from previous prime (1061666357) and next prime (1061666369).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1061666363 is a prime.

It is a super-2 number, since 2×1061666363² = 2254270932651295538, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1061666369) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 280403 + ... + 284163.

It is an arithmetic number, because the mean of its divisors is an integer number (71101800).

Almost surely, 2^1061666363 is an apocalyptic number.

1061666363 is a deficient number, since it is larger than the sum of its proper divisors (75962437).

1061666363 is a wasteful number, since it uses less digits than its factorization.

1061666363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4042.

The product of its (nonzero) digits is 69984, while the sum is 38.

The square root of 1061666363 is about 32583.2221089321. Note that the first 3 decimals coincide. The cubic root of 1061666363 is about 1020.1468335970.

The spelling of 1061666363 in words is "one billion, sixty-one million, six hundred sixty-six thousand, three hundred sixty-three".