66120502 has 12 divisors (see below), whose sum is σ = 115373700. Its totient is φ = 28337316.

The previous prime is 66120499. The next prime is 66120529. The reversal of 66120502 is 20502166.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 337252 + ... + 337447.

It is an arithmetic number, because the mean of its divisors is an integer number (9614475).

Almost surely, 2^66120502 is an apocalyptic number.

66120502 is a deficient number, since it is larger than the sum of its proper divisors (49253198).

66120502 is a wasteful number, since it uses less digits than its factorization.

66120502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 674715 (or 674708 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 66120502 is about 8131.4514079591. The cubic root of 66120502 is about 404.3698007656.

Adding to 66120502 its reverse (20502166), we get a palindrome (86622668).

The spelling of 66120502 in words is "sixty-six million, one hundred twenty thousand, five hundred two".