30666730440025 has 45 divisors (see below), whose sum is σ = 38997247927631. Its totient is φ = 23922835787760.

The previous prime is 30666730439951. The next prime is 30666730440037. The reversal of 30666730440025 is 52004403766603.

It is a happy number.

The square root of 30666730440025 is 5537755.

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

It can be written as a sum of positive squares in only one way, i.e., 11040022958409 + 19626707481616 = 3322653^2 + 4430204^2 .

It is not a de Polignac number, because 30666730440025 - 2⁷ = 30666730439897 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 51196544676 + ... + 51196545274.

Almost surely, 2^{30666730440025} is an apocalyptic number.

30666730440025 is the 5537755-th square number.

30666730440025 is the 2768878-th centered octagonal number.

It is an amenable number.

30666730440025 is a deficient number, since it is larger than the sum of its proper divisors (8330517487606).

30666730440025 is an frugal number, since it uses more digits than its factorization.

30666730440025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1380 (or 647 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 46.

The spelling of 30666730440025 in words is "thirty trillion, six hundred sixty-six billion, seven hundred thirty million, four hundred forty thousand, twenty-five".