661361302 has 16 divisors (see below), whose sum is σ = 1200454560. Its totient is φ = 266767488.

The previous prime is 661361287. The next prime is 661361317. The reversal of 661361302 is 203163166.

It is an interprime number because it is at equal distance from previous prime (661361287) and next prime (661361317).

It is a congruent number.

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, 1389177 + ... + 1389652.

It is an arithmetic number, because the mean of its divisors is an integer number (75028410).

Almost surely, 2^661361302 is an apocalyptic number.

661361302 is a deficient number, since it is larger than the sum of its proper divisors (539093258).

661361302 is a wasteful number, since it uses less digits than its factorization.

661361302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2778855.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 661361302 is about 25716.9458139959. The cubic root of 661361302 is about 871.2569588041.

The spelling of 661361302 in words is "six hundred sixty-one million, three hundred sixty-one thousand, three hundred two".