1174320172561 has 8 divisors (see below), whose sum is σ = 1225404638784. Its totient is φ = 1123237962000.

The previous prime is 1174320172541. The next prime is 1174320172603. The reversal of 1174320172561 is 1652710234711.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1174320172561 - 2²⁵ = 1174286618129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1174320172541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 546495 + ... + 1627051.

It is an arithmetic number, because the mean of its divisors is an integer number (153175579848).

Almost surely, 2^{1174320172561} is an apocalyptic number.

It is an amenable number.

1174320172561 is a deficient number, since it is larger than the sum of its proper divisors (51084466223).

1174320172561 is a wasteful number, since it uses less digits than its factorization.

1174320172561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1127831.

The product of its (nonzero) digits is 70560, while the sum is 40.

The spelling of 1174320172561 in words is "one trillion, one hundred seventy-four billion, three hundred twenty million, one hundred seventy-two thousand, five hundred sixty-one".