147664566 has 32 divisors (see below), whose sum is σ = 375022080. Its totient is φ = 42189768.

The previous prime is 147664541. The next prime is 147664571. The reversal of 147664566 is 665466741.

147664566 is a `hidden beast` number, since 14 + 76 + 6 + 4 + 566 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 194946 + ... + 195701.

It is an arithmetic number, because the mean of its divisors is an integer number (11719440).

Almost surely, 2^147664566 is an apocalyptic number.

147664566 is an abundant number, since it is smaller than the sum of its proper divisors (227357514).

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

147664566 is a wasteful number, since it uses less digits than its factorization.

147664566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390665 (or 390659 counting only the distinct ones).

The product of its digits is 725760, while the sum is 45.

The square root of 147664566 is about 12151.7309878058. The cubic root of 147664566 is about 528.5573273152.

The spelling of 147664566 in words is "one hundred forty-seven million, six hundred sixty-four thousand, five hundred sixty-six".