66062872 has 8 divisors (see below), whose sum is σ = 123867900. Its totient is φ = 33031432.

The previous prime is 66062869. The next prime is 66062879. The reversal of 66062872 is 27826066.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66062879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4128922 + ... + 4128937.

Almost surely, 2^66062872 is an apocalyptic number.

It is an amenable number.

66062872 is a deficient number, since it is larger than the sum of its proper divisors (57805028).

66062872 is a wasteful number, since it uses less digits than its factorization.

66062872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8257865 (or 8257861 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 66062872 is about 8127.9069876568. The cubic root of 66062872 is about 404.2522849943.

The spelling of 66062872 in words is "sixty-six million, sixty-two thousand, eight hundred seventy-two".