66769852 has 12 divisors (see below), whose sum is σ = 118326880. Its totient is φ = 32962176.

The previous prime is 66769849. The next prime is 66769883. The reversal of 66769852 is 25896766.

It is a happy number.

It is a super-2 number, since 2×66769852² = 8916426272203808, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 66769796 and 66769805.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105333 + ... + 105964.

Almost surely, 2^66769852 is an apocalyptic number.

It is an amenable number.

66769852 is a deficient number, since it is larger than the sum of its proper divisors (51557028).

66769852 is a wasteful number, since it uses less digits than its factorization.

66769852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211380 (or 211378 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 49.

The square root of 66769852 is about 8171.2821515353. The cubic root of 66769852 is about 405.6892232135.

The spelling of 66769852 in words is "sixty-six million, seven hundred sixty-nine thousand, eight hundred fifty-two".