1611064325 has 72 divisors (see below), whose sum is σ = 2303691840. Its totient is φ = 1114713600.

The previous prime is 1611064319. The next prime is 1611064339. The reversal of 1611064325 is 5234601161.

It is a happy number.

It is not a de Polignac number, because 1611064325 - 2¹⁶ = 1610998789 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 5733185 + ... + 5733465.

It is an arithmetic number, because the mean of its divisors is an integer number (31995720).

Almost surely, 2^1611064325 is an apocalyptic number.

It is an amenable number.

1611064325 is a deficient number, since it is larger than the sum of its proper divisors (692627515).

1611064325 is a wasteful number, since it uses less digits than its factorization.

1611064325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399 (or 381 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 1611064325 is about 40138.0657854860. The cubic root of 1611064325 is about 1172.2969280804.

Adding to 1611064325 its reverse (5234601161), we get a palindrome (6845665486).

The spelling of 1611064325 in words is "one billion, six hundred eleven million, sixty-four thousand, three hundred twenty-five".