66574102 has 16 divisors (see below), whose sum is σ = 115692192. Its totient is φ = 28140480.

The previous prime is 66574097. The next prime is 66574117. The reversal of 66574102 is 20147566.

It is a happy number.

It is a super-2 number, since 2×66574102² = 8864222114212808, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31549 + ... + 33592.

It is an arithmetic number, because the mean of its divisors is an integer number (7230762).

Almost surely, 2^66574102 is an apocalyptic number.

66574102 is a deficient number, since it is larger than the sum of its proper divisors (49118090).

66574102 is a wasteful number, since it uses less digits than its factorization.

66574102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65223.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 66574102 is about 8159.2954352689. The cubic root of 66574102 is about 405.2923804483.

The spelling of 66574102 in words is "sixty-six million, five hundred seventy-four thousand, one hundred two".