1611475327745 has 8 divisors (see below), whose sum is σ = 1941123134016. Its totient is φ = 1284278435056.

The previous prime is 1611475327717. The next prime is 1611475327753. The reversal of 1611475327745 is 5477235741161.

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 1611475327745 - 2⁶ = 1611475327681 is a prime.

It is a Duffinian 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, 612726947 + ... + 612729576.

It is an arithmetic number, because the mean of its divisors is an integer number (242640391752).

Almost surely, 2^{1611475327745} is an apocalyptic number.

It is an amenable number.

1611475327745 is a deficient number, since it is larger than the sum of its proper divisors (329647806271).

1611475327745 is a wasteful number, since it uses less digits than its factorization.

1611475327745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1225456791.

The product of its digits is 4939200, while the sum is 53.

The spelling of 1611475327745 in words is "one trillion, six hundred eleven billion, four hundred seventy-five million, three hundred twenty-seven thousand, seven hundred forty-five".