1086945661 has 8 divisors (see below), whose sum is σ = 1135105920. Its totient is φ = 1038860592.

The previous prime is 1086945659. The next prime is 1086945683. The reversal of 1086945661 is 1665496801.

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

It is a cyclic number.

It is not a de Polignac number, because 1086945661 - 2¹ = 1086945659 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1086945631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11835 + ... + 48103.

It is an arithmetic number, because the mean of its divisors is an integer number (141888240).

Almost surely, 2^1086945661 is an apocalyptic number.

It is an amenable number.

1086945661 is a deficient number, since it is larger than the sum of its proper divisors (48160259).

1086945661 is a wasteful number, since it uses less digits than its factorization.

1086945661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37595.

The product of its (nonzero) digits is 311040, while the sum is 46.

The square root of 1086945661 is about 32968.8589581138. The cubic root of 1086945661 is about 1028.1802981944.

The spelling of 1086945661 in words is "one billion, eighty-six million, nine hundred forty-five thousand, six hundred sixty-one".