1187111670455 has 16 divisors (see below), whose sum is σ = 1433550389760. Its totient is φ = 943697113248.

The previous prime is 1187111670439. The next prime is 1187111670461. The reversal of 1187111670455 is 5540761117811.

It is a cyclic number.

It is not a de Polignac number, because 1187111670455 - 2⁴ = 1187111670439 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 660467 + ... + 1676436.

It is an arithmetic number, because the mean of its divisors is an integer number (89596899360).

Almost surely, 2^{1187111670455} is an apocalyptic number.

1187111670455 is a deficient number, since it is larger than the sum of its proper divisors (246438719305).

1187111670455 is a wasteful number, since it uses less digits than its factorization.

1187111670455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2337550.

The product of its (nonzero) digits is 235200, while the sum is 47.

The spelling of 1187111670455 in words is "one trillion, one hundred eighty-seven billion, one hundred eleven million, six hundred seventy thousand, four hundred fifty-five".