1163655155 has 8 divisors (see below), whose sum is σ = 1503800592. Its totient is φ = 859314528.

The previous prime is 1163655149. The next prime is 1163655161. The reversal of 1163655155 is 5515563611.

It is an interprime number because it is at equal distance from previous prime (1163655149) and next prime (1163655161).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1163655155 - 2²⁴ = 1146877939 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8951129 + ... + 8951258.

It is an arithmetic number, because the mean of its divisors is an integer number (187975074).

Almost surely, 2^1163655155 is an apocalyptic number.

1163655155 is a deficient number, since it is larger than the sum of its proper divisors (340145437).

1163655155 is a wasteful number, since it uses less digits than its factorization.

1163655155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17902405.

The product of its digits is 67500, while the sum is 38.

The square root of 1163655155 is about 34112.3900511237. The cubic root of 1163655155 is about 1051.8200195577.

The spelling of 1163655155 in words is "one billion, one hundred sixty-three million, six hundred fifty-five thousand, one hundred fifty-five".