33066876649 has 27 divisors (see below), whose sum is σ = 34913056773. Its totient is φ = 31317728832.

The previous prime is 33066876641. The next prime is 33066876673. The reversal of 33066876649 is 94667866033.

The square root of 33066876649 is 181843.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 2825666649 + 30241210000 = 53157^2 + 173900^2 .

It is not a de Polignac number, because 33066876649 - 2³ = 33066876641 is a prime.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 33066876593 and 33066876602.

It is not an unprimeable number, because it can be changed into a prime (33066876641) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 452970877 + ... + 452970949.

Almost surely, 2^33066876649 is an apocalyptic number.

33066876649 is the 181843-rd square number.

33066876649 is the 90922-nd centered octagonal number.

It is an amenable number.

33066876649 is a deficient number, since it is larger than the sum of its proper divisors (1846180124).

33066876649 is an frugal number, since it uses more digits than its factorization.

33066876649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346 (or 173 counting only the distinct ones).

The product of its (nonzero) digits is 23514624, while the sum is 58.

The spelling of 33066876649 in words is "thirty-three billion, sixty-six million, eight hundred seventy-six thousand, six hundred forty-nine".