1191175168940 has 24 divisors (see below), whose sum is σ = 2501565712800. Its totient is φ = 476451427968.

The previous prime is 1191175168927. The next prime is 1191175168943. The reversal of 1191175168940 is 498615711911.

It is not an unprimeable number, because it can be changed into a prime (1191175168943) 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, 635072 + ... + 1669031.

It is an arithmetic number, because the mean of its divisors is an integer number (104231904700).

Almost surely, 2^{1191175168940} is an apocalyptic number.

1191175168940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1191175168940 is an abundant number, since it is smaller than the sum of its proper divisors (1310390543860).

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

1191175168940 is a wasteful number, since it uses less digits than its factorization.

1191175168940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2329961 (or 2329959 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 53.

The spelling of 1191175168940 in words is "one trillion, one hundred ninety-one billion, one hundred seventy-five million, one hundred sixty-eight thousand, nine hundred forty".