6994411643025 has 45 divisors (see below), whose sum is σ = 12956288637963. Its totient is φ = 3730289403600.

The previous prime is 6994411643003. The next prime is 6994411643071. The reversal of 6994411643025 is 5203461144996.

The square root of 6994411643025 is 2644695.

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

6994411643025 is a `hidden beast` number, since 6 + 9 + 9 + 441 + 164 + 30 + 2 + 5 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2517988191489 + 4476423451536 = 1586817^2 + 2115756^2 .

It is a tau number, because it is divible by the number of its divisors (45).

It is not a de Polignac number, because 6994411643025 - 2⁵ = 6994411642993 is a prime.

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, 118981890 + ... + 119040660.

Almost surely, 2^{6994411643025} is an apocalyptic number.

6994411643025 is the 2644695-th square number.

6994411643025 is the 1322348-th centered octagonal number.

It is an amenable number.

6994411643025 is a deficient number, since it is larger than the sum of its proper divisors (5961876994938).

6994411643025 is an frugal number, since it uses more digits than its factorization.

6994411643025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117564 (or 58779 counting only the distinct ones).

The product of its (nonzero) digits is 5598720, while the sum is 54.

The spelling of 6994411643025 in words is "six trillion, nine hundred ninety-four billion, four hundred eleven million, six hundred forty-three thousand, twenty-five".