660012353536 has 24 divisors (see below), whose sum is σ = 1319702439510. Its totient is φ = 330006175744.

The previous prime is 660012353531. The next prime is 660012353591. The reversal of 660012353536 is 635353210066.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 654675174400 + 5337179136 = 809120^2 + 73056^2 .

It is not an unprimeable number, because it can be changed into a prime (660012353531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161133781 + ... + 161137876.

Almost surely, 2^660012353536 is an apocalyptic number.

It is an amenable number.

660012353536 is a deficient number, since it is larger than the sum of its proper divisors (659690085974).

660012353536 is an equidigital number, since it uses as much as digits as its factorization.

660012353536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322271679 (or 322271659 counting only the distinct ones).

The product of its (nonzero) digits is 291600, while the sum is 40.

The spelling of 660012353536 in words is "six hundred sixty billion, twelve million, three hundred fifty-three thousand, five hundred thirty-six".