661482267 has 8 divisors (see below), whose sum is σ = 882133824. Its totient is φ = 440909448.

The previous prime is 661482209. The next prime is 661482293. The reversal of 661482267 is 762284166.

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

It is not a de Polignac number, because 661482267 - 2⁶ = 661482203 is a prime.

It is not an unprimeable number, because it can be changed into a prime (661482067) 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, 3988 + ... + 36590.

It is an arithmetic number, because the mean of its divisors is an integer number (110266728).

Almost surely, 2^661482267 is an apocalyptic number.

661482267 is a deficient number, since it is larger than the sum of its proper divisors (220651557).

661482267 is a wasteful number, since it uses less digits than its factorization.

661482267 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39369.

The product of its digits is 193536, while the sum is 42.

The square root of 661482267 is about 25719.2975603923. The cubic root of 661482267 is about 871.3100740846.

The spelling of 661482267 in words is "six hundred sixty-one million, four hundred eighty-two thousand, two hundred sixty-seven".