660349086 has 8 divisors (see below), whose sum is σ = 1320698184. Its totient is φ = 220116360.

The previous prime is 660349057. The next prime is 660349103. The reversal of 660349086 is 680943066.

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

660349086 is an admirable number.

It is a congruent number.

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, 55029085 + ... + 55029096.

It is an arithmetic number, because the mean of its divisors is an integer number (165087273).

Almost surely, 2^660349086 is an apocalyptic number.

660349086 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.

660349086 is a wasteful number, since it uses less digits than its factorization.

660349086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110058186.

The product of its (nonzero) digits is 186624, while the sum is 42.

The square root of 660349086 is about 25697.2583362506. The cubic root of 660349086 is about 870.8122444796.

The spelling of 660349086 in words is "six hundred sixty million, three hundred forty-nine thousand, eighty-six".