661371362 has 8 divisors (see below), whose sum is σ = 992576592. Its totient is φ = 330512500.

The previous prime is 661371341. The next prime is 661371367. The reversal of 661371362 is 263173166.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (661371367) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81764 + ... + 89487.

It is an arithmetic number, because the mean of its divisors is an integer number (124072074).

Almost surely, 2^661371362 is an apocalyptic number.

661371362 is a deficient number, since it is larger than the sum of its proper divisors (331205230).

661371362 is a wasteful number, since it uses less digits than its factorization.

661371362 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173184.

The product of its digits is 27216, while the sum is 35.

The square root of 661371362 is about 25717.1414041297. The cubic root of 661371362 is about 871.2613763595.

The spelling of 661371362 in words is "six hundred sixty-one million, three hundred seventy-one thousand, three hundred sixty-two".