1916155116 has 72 divisors (see below), whose sum is σ = 5241460224. Its totient is φ = 610940880.

The previous prime is 1916155099. The next prime is 1916155117. The reversal of 1916155116 is 6115516191.

It is a happy number.

1916155116 is a `hidden beast` number, since 1 + 91 + 6 + 1 + 551 + 16 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (1916155117) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20500 + ... + 65211.

Almost surely, 2^1916155116 is an apocalyptic number.

It is an amenable number.

1916155116 is an abundant number, since it is smaller than the sum of its proper divisors (3325305108).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1916155116 is a wasteful number, since it uses less digits than its factorization.

1916155116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85753 (or 85739 counting only the distinct ones).

The product of its digits is 8100, while the sum is 36.

The square root of 1916155116 is about 43773.9090783540. The cubic root of 1916155116 is about 1242.0627987570.

The spelling of 1916155116 in words is "one billion, nine hundred sixteen million, one hundred fifty-five thousand, one hundred sixteen".