661302466 has 16 divisors (see below), whose sum is σ = 1084557600. Its totient is φ = 299918080.

The previous prime is 661302427. The next prime is 661302487. The reversal of 661302466 is 664203166.

661302466 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23596 + ... + 43351.

It is an arithmetic number, because the mean of its divisors is an integer number (67784850).

Almost surely, 2^661302466 is an apocalyptic number.

661302466 is a deficient number, since it is larger than the sum of its proper divisors (423255134).

661302466 is a wasteful number, since it uses less digits than its factorization.

661302466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67409.

The product of its (nonzero) digits is 31104, while the sum is 34.

The square root of 661302466 is about 25715.8018735563. The cubic root of 661302466 is about 871.2311217947.

The spelling of 661302466 in words is "six hundred sixty-one million, three hundred two thousand, four hundred sixty-six".