1147661317553 has 4 divisors (see below), whose sum is σ = 1147989318000. Its totient is φ = 1147333317108.

The previous prime is 1147661317547. The next prime is 1147661317559. The reversal of 1147661317553 is 3557131667411.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (1147661317547) and next prime (1147661317559).

It is a cyclic number.

It is not a de Polignac number, because 1147661317553 - 2⁶ = 1147661317489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1147661317559) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 163994975 + ... + 164001972.

It is an arithmetic number, because the mean of its divisors is an integer number (286997329500).

Almost surely, 2^{1147661317553} is an apocalyptic number.

It is an amenable number.

1147661317553 is a deficient number, since it is larger than the sum of its proper divisors (328000447).

1147661317553 is an equidigital number, since it uses as much as digits as its factorization.

1147661317553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328000446.

The product of its digits is 1587600, while the sum is 50.

The spelling of 1147661317553 in words is "one trillion, one hundred forty-seven billion, six hundred sixty-one million, three hundred seventeen thousand, five hundred fifty-three".