1171550020711 has 8 divisors (see below), whose sum is σ = 1339002813600. Its totient is φ = 1004119353888.

The previous prime is 1171550020703. The next prime is 1171550020721. The reversal of 1171550020711 is 1170200551711.

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

It is not a de Polignac number, because 1171550020711 - 2³ = 1171550020703 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1171550020721) 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, 5417896 + ... + 5629981.

It is an arithmetic number, because the mean of its divisors is an integer number (167375351700).

Almost surely, 2^{1171550020711} is an apocalyptic number.

1171550020711 is a deficient number, since it is larger than the sum of its proper divisors (167452792889).

1171550020711 is a wasteful number, since it uses less digits than its factorization.

1171550020711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11063033.

The product of its (nonzero) digits is 2450, while the sum is 31.

The spelling of 1171550020711 in words is "one trillion, one hundred seventy-one billion, five hundred fifty million, twenty thousand, seven hundred eleven".