1612633311025 has 45 divisors (see below), whose sum is σ = 2200666613755. Its totient is φ = 1172265472400.

The previous prime is 1612633311013. The next prime is 1612633311043. The reversal of 1612633311025 is 5201133362161.

The square root of 1612633311025 is 1269895.

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., 580547991969 + 1032085319056 = 761937^2 + 1015916^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1612633311025 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, 768285426 + ... + 768287524.

Almost surely, 2^{1612633311025} is an apocalyptic number.

1612633311025 is the 1269895-th square number.

1612633311025 is the 634948-th centered octagonal number.

It is an amenable number.

1612633311025 is a deficient number, since it is larger than the sum of its proper divisors (588033302730).

1612633311025 is an frugal number, since it uses more digits than its factorization.

1612633311025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4252 (or 2115 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 34.

Adding to 1612633311025 its reverse (5201133362161), we get a palindrome (6813766673186).

The spelling of 1612633311025 in words is "one trillion, six hundred twelve billion, six hundred thirty-three million, three hundred eleven thousand, twenty-five".