1625610603412 has 24 divisors (see below), whose sum is σ = 2860710011432. Its totient is φ = 808265433600.

The previous prime is 1625610603377. The next prime is 1625610603427. The reversal of 1625610603412 is 2143060165261.

It can be written as a sum of positive squares in 4 ways, for example, as 371851161616 + 1253759441796 = 609796^2 + 1119714^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13755808 + ... + 13873480.

Almost surely, 2^{1625610603412} is an apocalyptic number.

It is an amenable number.

1625610603412 is a deficient number, since it is larger than the sum of its proper divisors (1235099408020).

1625610603412 is a wasteful number, since it uses less digits than its factorization.

1625610603412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136939 (or 136937 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 37.

Adding to 1625610603412 its reverse (2143060165261), we get a palindrome (3768670768673).

The spelling of 1625610603412 in words is "one trillion, six hundred twenty-five billion, six hundred ten million, six hundred three thousand, four hundred twelve".