660242463 has 8 divisors (see below), whose sum is σ = 888870528. Its totient is φ = 435888024.

The previous prime is 660242461. The next prime is 660242491. The reversal of 660242463 is 364242066.

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

It is not a de Polignac number, because 660242463 - 2¹ = 660242461 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (660242461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1068045 + ... + 1068662.

It is an arithmetic number, because the mean of its divisors is an integer number (111108816).

Almost surely, 2^660242463 is an apocalyptic number.

660242463 is a deficient number, since it is larger than the sum of its proper divisors (228628065).

660242463 is a wasteful number, since it uses less digits than its factorization.

660242463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2136813.

The product of its (nonzero) digits is 41472, while the sum is 33.

The square root of 660242463 is about 25695.1836537511. The cubic root of 660242463 is about 870.7653735071.

The spelling of 660242463 in words is "six hundred sixty million, two hundred forty-two thousand, four hundred sixty-three".