2016897030625 has 15 divisors (see below), whose sum is σ = 2520358896517. Its totient is φ = 1613489221000.

The previous prime is 2016897030619. The next prime is 2016897030637. The reversal of 2016897030625 is 5260307986102.

The square root of 2016897030625 is 1420175.

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

It can be written as a sum of positive squares in 2 ways, for example, as 158124727201 + 1858772303424 = 397649^2 + 1363368^2 .

It is not a de Polignac number, because 2016897030625 - 2¹⁷ = 2016896899553 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 35475972 + ... + 35532778.

Almost surely, 2^{2016897030625} is an apocalyptic number.

2016897030625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2016897030625 is the 1420175-th square number.

2016897030625 is the 710088-th centered octagonal number.

It is an amenable number.

2016897030625 is a deficient number, since it is larger than the sum of its proper divisors (503461865892).

2016897030625 is an frugal number, since it uses more digits than its factorization.

2016897030625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113634 (or 56812 counting only the distinct ones).

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

Multiplying 2016897030625 by its sum of digits (49), we get a square (98827954500625 = 9941225²).

The spelling of 2016897030625 in words is "two trillion, sixteen billion, eight hundred ninety-seven million, thirty thousand, six hundred twenty-five".