23521489066 has 16 divisors (see below), whose sum is σ = 36046510920. Its totient is φ = 11508710400.

The previous prime is 23521489063. The next prime is 23521489081. The reversal of 23521489066 is 66098412532.

It can be written as a sum of positive squares in 4 ways, for example, as 14195531025 + 9325958041 = 119145^2 + 96571^2 .

It is not an unprimeable number, because it can be changed into a prime (23521489063) 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, 663885 + ... + 698416.

Almost surely, 2^23521489066 is an apocalyptic number.

23521489066 is a deficient number, since it is larger than the sum of its proper divisors (12525021854).

23521489066 is a wasteful number, since it uses less digits than its factorization.

23521489066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1362489.

The product of its (nonzero) digits is 622080, while the sum is 46.

The spelling of 23521489066 in words is "twenty-three billion, five hundred twenty-one million, four hundred eighty-nine thousand, sixty-six".