131664066 has 8 divisors (see below), whose sum is σ = 263328144. Its totient is φ = 43888020.

The previous prime is 131664059. The next prime is 131664073. The reversal of 131664066 is 660466131.

It is an interprime number because it is at equal distance from previous prime (131664059) and next prime (131664073).

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

131664066 is an admirable 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, 10972000 + ... + 10972011.

It is an arithmetic number, because the mean of its divisors is an integer number (32916018).

Almost surely, 2^131664066 is an apocalyptic number.

131664066 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.

131664066 is a wasteful number, since it uses less digits than its factorization.

131664066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21944016.

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 131664066 is about 11474.4963288155. The cubic root of 131664066 is about 508.7320366655.

The spelling of 131664066 in words is "one hundred thirty-one million, six hundred sixty-four thousand, sixty-six".