66052276 has 12 divisors (see below), whose sum is σ = 122391108. Its totient is φ = 31083392.

The previous prime is 66052267. The next prime is 66052291. The reversal of 66052276 is 67225066.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 49843600 + 16208676 = 7060^2 + 4026^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

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, 485611 + ... + 485746.

It is an arithmetic number, because the mean of its divisors is an integer number (10199259).

Almost surely, 2^66052276 is an apocalyptic number.

It is an amenable number.

66052276 is a deficient number, since it is larger than the sum of its proper divisors (56338832).

66052276 is a wasteful number, since it uses less digits than its factorization.

66052276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 971378 (or 971376 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 66052276 is about 8127.2551331923. The cubic root of 66052276 is about 404.2306708051.

The spelling of 66052276 in words is "sixty-six million, fifty-two thousand, two hundred seventy-six".