660426486 has 8 divisors (see below), whose sum is σ = 1320852984. Its totient is φ = 220142160.

The previous prime is 660426427. The next prime is 660426493. The reversal of 660426486 is 684624066.

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

660426486 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55035535 + ... + 55035546.

It is an arithmetic number, because the mean of its divisors is an integer number (165106623).

Almost surely, 2^660426486 is an apocalyptic number.

660426486 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

660426486 is a wasteful number, since it uses less digits than its factorization.

660426486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110071086.

The product of its (nonzero) digits is 331776, while the sum is 42.

The square root of 660426486 is about 25698.7642893584. The cubic root of 660426486 is about 870.8462659974.

The spelling of 660426486 in words is "six hundred sixty million, four hundred twenty-six thousand, four hundred eighty-six".