1325156663551 has 16 divisors (see below), whose sum is σ = 1518796500480. Its totient is φ = 1132602377760.

The previous prime is 1325156663543. The next prime is 1325156663581. The reversal of 1325156663551 is 1553666515231.

It is not a de Polignac number, because 1325156663551 - 2³ = 1325156663543 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1325156663495 and 1325156663504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1325156663521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6042660 + ... + 6258118.

It is an arithmetic number, because the mean of its divisors is an integer number (94924781280).

Almost surely, 2^{1325156663551} is an apocalyptic number.

1325156663551 is a deficient number, since it is larger than the sum of its proper divisors (193639836929).

1325156663551 is a wasteful number, since it uses less digits than its factorization.

1325156663551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217974.

The product of its digits is 2430000, while the sum is 49.

The spelling of 1325156663551 in words is "one trillion, three hundred twenty-five billion, one hundred fifty-six million, six hundred sixty-three thousand, five hundred fifty-one".