1171177670445 has 16 divisors (see below), whose sum is σ = 1885819845120. Its totient is φ = 620649566784.

The previous prime is 1171177670441. The next prime is 1171177670483. The reversal of 1171177670445 is 5440767711711.

It is a happy number.

It is not a de Polignac number, because 1171177670445 - 2² = 1171177670441 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1171177670441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 248655325 + ... + 248660034.

It is an arithmetic number, because the mean of its divisors is an integer number (117863740320).

Almost surely, 2^{1171177670445} is an apocalyptic number.

1171177670445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1171177670445 is a deficient number, since it is larger than the sum of its proper divisors (714642174675).

1171177670445 is a wasteful number, since it uses less digits than its factorization.

1171177670445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497315524.

The product of its (nonzero) digits is 1152480, while the sum is 51.

The spelling of 1171177670445 in words is "one trillion, one hundred seventy-one billion, one hundred seventy-seven million, six hundred seventy thousand, four hundred forty-five".