2168950155 has 16 divisors (see below), whose sum is σ = 3473362944. Its totient is φ = 1155759200.

The previous prime is 2168950139. The next prime is 2168950159. The reversal of 2168950155 is 5510598612.

It is a happy number.

It is not a de Polignac number, because 2168950155 - 2⁴ = 2168950139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2168950159) 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, 45549 + ... + 80078.

It is an arithmetic number, because the mean of its divisors is an integer number (217085184).

Almost surely, 2^2168950155 is an apocalyptic number.

2168950155 is a deficient number, since it is larger than the sum of its proper divisors (1304412789).

2168950155 is a wasteful number, since it uses less digits than its factorization.

2168950155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126786.

The product of its (nonzero) digits is 108000, while the sum is 42.

The square root of 2168950155 is about 46571.9889525882. The cubic root of 2168950155 is about 1294.4437725926.

The spelling of 2168950155 in words is "two billion, one hundred sixty-eight million, nine hundred fifty thousand, one hundred fifty-five".