66024424 has 8 divisors (see below), whose sum is σ = 123795810. Its totient is φ = 33012208.

The previous prime is 66024403. The next prime is 66024437. The reversal of 66024424 is 42442066.

It can be written as a sum of positive squares in only one way, i.e., 65901924 + 122500 = 8118^2 + 350^2 .

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

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 66024392 and 66024401.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4126519 + ... + 4126534.

Almost surely, 2^66024424 is an apocalyptic number.

It is an amenable number.

66024424 is a deficient number, since it is larger than the sum of its proper divisors (57771386).

66024424 is a wasteful number, since it uses less digits than its factorization.

66024424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8253059 (or 8253055 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

The square root of 66024424 is about 8125.5414588814. The cubic root of 66024424 is about 404.1738460387.

It can be divided in two parts, 6602 and 4424, that added together give a triangular number (11026 = T₁₄₈).

The spelling of 66024424 in words is "sixty-six million, twenty-four thousand, four hundred twenty-four".