661846498 has 8 divisors (see below), whose sum is σ = 996433920. Its totient is φ = 329701860.

The previous prime is 661846489. The next prime is 661846529. The reversal of 661846498 is 894648166.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 610018 + ... + 611101.

It is an arithmetic number, because the mean of its divisors is an integer number (124554240).

Almost surely, 2^661846498 is an apocalyptic number.

661846498 is a deficient number, since it is larger than the sum of its proper divisors (334587422).

661846498 is a wasteful number, since it uses less digits than its factorization.

661846498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1221392.

The product of its digits is 1990656, while the sum is 52.

The square root of 661846498 is about 25726.3774752685. The cubic root of 661846498 is about 871.4699674657.

The spelling of 661846498 in words is "six hundred sixty-one million, eight hundred forty-six thousand, four hundred ninety-eight".