1086945656 has 8 divisors (see below), whose sum is σ = 2038023120. Its totient is φ = 543472824.

The previous prime is 1086945637. The next prime is 1086945659. The reversal of 1086945656 is 6565496801.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1086945659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67934096 + ... + 67934111.

It is an arithmetic number, because the mean of its divisors is an integer number (254752890).

Almost surely, 2^1086945656 is an apocalyptic number.

It is an amenable number.

1086945656 is a deficient number, since it is larger than the sum of its proper divisors (951077464).

1086945656 is a wasteful number, since it uses less digits than its factorization.

1086945656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135868213 (or 135868209 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 50.

The square root of 1086945656 is about 32968.8588822847. The cubic root of 1086945656 is about 1028.1802966178.

The spelling of 1086945656 in words is "one billion, eighty-six million, nine hundred forty-five thousand, six hundred fifty-six".