66038862 has 16 divisors (see below), whose sum is σ = 133361280. Its totient is φ = 21799032.

The previous prime is 66038837. The next prime is 66038873. The reversal of 66038862 is 26883066.

It is a super-2 number, since 2×66038862² = 8722262588510088, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 66038862.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52812 + ... + 54047.

It is an arithmetic number, because the mean of its divisors is an integer number (8335080).

Almost surely, 2^66038862 is an apocalyptic number.

66038862 is an abundant number, since it is smaller than the sum of its proper divisors (67322418).

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

66038862 is a wasteful number, since it uses less digits than its factorization.

66038862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106967.

The product of its (nonzero) digits is 82944, while the sum is 39.

The square root of 66038862 is about 8126.4298434183. The cubic root of 66038862 is about 404.2033050193.

The spelling of 66038862 in words is "sixty-six million, thirty-eight thousand, eight hundred sixty-two".