661046336 has 14 divisors (see below), whose sum is σ = 1311763950. Its totient is φ = 330523136.

The previous prime is 661046333. The next prime is 661046339. The reversal of 661046336 is 633640166.

It is an interprime number because it is at equal distance from previous prime (661046333) and next prime (661046339).

It can be written as a sum of positive squares in only one way, i.e., 419430400 + 241615936 = 20480^2 + 15544^2 .

It is a junction number, because it is equal to n+sod(n) for n = 661046296 and 661046305.

It is not an unprimeable number, because it can be changed into a prime (661046333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5164361 + ... + 5164488.

It is an arithmetic number, because the mean of its divisors is an integer number (93697425).

Almost surely, 2^661046336 is an apocalyptic number.

It is an amenable number.

661046336 is a deficient number, since it is larger than the sum of its proper divisors (650717614).

661046336 is a wasteful number, since it uses less digits than its factorization.

661046336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10328861 (or 10328851 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 35.

The square root of 661046336 is about 25710.8213793336. The cubic root of 661046336 is about 871.1186280145.

The spelling of 661046336 in words is "six hundred sixty-one million, forty-six thousand, three hundred thirty-six".