1325604641355 has 24 divisors (see below), whose sum is σ = 2306256423120. Its totient is φ = 704360923200.

The previous prime is 1325604641351. The next prime is 1325604641357. The reversal of 1325604641355 is 5531464065231.

It is a happy number.

1325604641355 is a `hidden beast` number, since 1 + 3 + 2 + 5 + 604 + 6 + 4 + 1 + 35 + 5 = 666.

It is not a de Polignac number, because 1325604641355 - 2² = 1325604641351 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 1325604641355.

It is not an unprimeable number, because it can be changed into a prime (1325604641351) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 54742321 + ... + 54766530.

It is an arithmetic number, because the mean of its divisors is an integer number (96094017630).

Almost surely, 2^{1325604641355} is an apocalyptic number.

1325604641355 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1325604641355 is a deficient number, since it is larger than the sum of its proper divisors (980651781765).

1325604641355 is a wasteful number, since it uses less digits than its factorization.

1325604641355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109509131 (or 109509128 counting only the distinct ones).

The product of its (nonzero) digits is 1296000, while the sum is 45.

The spelling of 1325604641355 in words is "one trillion, three hundred twenty-five billion, six hundred four million, six hundred forty-one thousand, three hundred fifty-five".