66574030 has 16 divisors (see below), whose sum is σ = 120201264. Its totient is φ = 26547840.

The previous prime is 66574021. The next prime is 66574031. The reversal of 66574030 is 3047566.

It is a junction number, because it is equal to n+sod(n) for n = 66573983 and 66574001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66574031) by changing a digit.

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, 6747 + ... + 13366.

It is an arithmetic number, because the mean of its divisors is an integer number (7512579).

Almost surely, 2^66574030 is an apocalyptic number.

66574030 is a deficient number, since it is larger than the sum of its proper divisors (53627234).

66574030 is a wasteful number, since it uses less digits than its factorization.

66574030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20451.

The product of its (nonzero) digits is 15120, while the sum is 31.

The square root of 66574030 is about 8159.2910231220. The cubic root of 66574030 is about 405.2922343402.

The spelling of 66574030 in words is "sixty-six million, five hundred seventy-four thousand, thirty".