9645455506 has 32 divisors (see below), whose sum is σ = 15667706880. Its totient is φ = 4442692800.

The previous prime is 9645455441. The next prime is 9645455509. The reversal of 9645455506 is 6055545469.

It is a self number, because there is not a number n which added to its sum of digits gives 9645455506.

It is not an unprimeable number, because it can be changed into a prime (9645455509) 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 15 ways as a sum of consecutive naturals, for example, 89880 + ... + 165436.

It is an arithmetic number, because the mean of its divisors is an integer number (489615840).

Almost surely, 2^9645455506 is an apocalyptic number.

9645455506 is a deficient number, since it is larger than the sum of its proper divisors (6022251374).

9645455506 is a wasteful number, since it uses less digits than its factorization.

9645455506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75690.

The product of its (nonzero) digits is 3240000, while the sum is 49.

The square root of 9645455506 is about 98211.2799326024. The cubic root of 9645455506 is about 2128.6662803374. Note that the first 3 decimals are identical.

The spelling of 9645455506 in words is "nine billion, six hundred forty-five million, four hundred fifty-five thousand, five hundred six".