1601630072425 has 6 divisors (see below), whose sum is σ = 1986021289838. Its totient is φ = 1281304057920.

The previous prime is 1601630072411. The next prime is 1601630072453. The reversal of 1601630072425 is 5242700361061.

It can be written as a sum of positive squares in 3 ways, for example, as 450208792576 + 1151421279849 = 670976^2 + 1073043^2 .

It is not a de Polignac number, because 1601630072425 - 2⁹ = 1601630071913 is a prime.

It is a super-2 number, since 2×1601630072425² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 32032601424 + ... + 32032601473.

Almost surely, 2^{1601630072425} is an apocalyptic number.

It is an amenable number.

1601630072425 is a deficient number, since it is larger than the sum of its proper divisors (384391217413).

1601630072425 is an equidigital number, since it uses as much as digits as its factorization.

1601630072425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64065202907 (or 64065202902 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 37.

The spelling of 1601630072425 in words is "one trillion, six hundred one billion, six hundred thirty million, seventy-two thousand, four hundred twenty-five".