538652666 has 8 divisors (see below), whose sum is σ = 809074560. Its totient is φ = 268961148.

The previous prime is 538652651. The next prime is 538652687. The reversal of 538652666 is 666256835.

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

It is a self number, because there is not a number n which added to its sum of digits gives 538652666.

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, 180746 + ... + 183701.

It is an arithmetic number, because the mean of its divisors is an integer number (101134320).

Almost surely, 2^538652666 is an apocalyptic number.

538652666 is a deficient number, since it is larger than the sum of its proper divisors (270421894).

538652666 is a wasteful number, since it uses less digits than its factorization.

538652666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365188.

The product of its digits is 1555200, while the sum is 47.

The square root of 538652666 is about 23208.8919597640. The cubic root of 538652666 is about 813.6474566379.

The spelling of 538652666 in words is "five hundred thirty-eight million, six hundred fifty-two thousand, six hundred sixty-six".