1195166655 has 12 divisors (see below), whose sum is σ = 2071622280. Its totient is φ = 637422192.

The previous prime is 1195166629. The next prime is 1195166663. The reversal of 1195166655 is 5566615911.

It is not a de Polignac number, because 1195166655 - 2⁷ = 1195166527 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 26559259 = 1195166655 / (1 + 1 + 9 + 5 + 1 + 6 + 6 + 6 + 5 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 1195166655.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13279585 + ... + 13279674.

It is an arithmetic number, because the mean of its divisors is an integer number (172635190).

Almost surely, 2^1195166655 is an apocalyptic number.

1195166655 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1195166655 is a deficient number, since it is larger than the sum of its proper divisors (876455625).

1195166655 is a wasteful number, since it uses less digits than its factorization.

1195166655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26559270 (or 26559267 counting only the distinct ones).

The product of its digits is 243000, while the sum is 45.

The square root of 1195166655 is about 34571.1824356645. The cubic root of 1195166655 is about 1061.2299284079.

It can be divided in two parts, 11951 and 66655, that added together give a triangular number (78606 = T₃₉₆).

The spelling of 1195166655 in words is "one billion, one hundred ninety-five million, one hundred sixty-six thousand, six hundred fifty-five".