1191148071162 has 64 divisors (see below), whose sum is σ = 2790158536704. Its totient is φ = 331910187840.

The previous prime is 1191148071143. The next prime is 1191148071163. The reversal of 1191148071162 is 2611708411911.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (1191148071163) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 694863 + ... + 1692669.

It is an arithmetic number, because the mean of its divisors is an integer number (43596227136).

Almost surely, 2^{1191148071162} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1191148071162, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1395079268352).

1191148071162 is an abundant number, since it is smaller than the sum of its proper divisors (1599010465542).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1191148071162 is a wasteful number, since it uses less digits than its factorization.

1191148071162 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 998523.

The product of its (nonzero) digits is 24192, while the sum is 42.

The spelling of 1191148071162 in words is "one trillion, one hundred ninety-one billion, one hundred forty-eight million, seventy-one thousand, one hundred sixty-two".