66952030 has 16 divisors (see below), whose sum is σ = 121869360. Its totient is φ = 26479552.

The previous prime is 66952021. The next prime is 66952117. The reversal of 66952030 is 3025966.

It is a super-2 number, since 2×66952030² = 8965148642241800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 66951983 and 66952001.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36724 + ... + 38503.

It is an arithmetic number, because the mean of its divisors is an integer number (7616835).

Almost surely, 2^66952030 is an apocalyptic number.

66952030 is a deficient number, since it is larger than the sum of its proper divisors (54917330).

66952030 is a wasteful number, since it uses less digits than its factorization.

66952030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75323.

The product of its (nonzero) digits is 9720, while the sum is 31.

The square root of 66952030 is about 8182.4220130717. The cubic root of 66952030 is about 406.0578553287.

Adding to 66952030 its reverse (3025966), we get a palindrome (69977996).

The spelling of 66952030 in words is "sixty-six million, nine hundred fifty-two thousand, thirty".