6158911212 has 18 divisors (see below), whose sum is σ = 15568358988. Its totient is φ = 2052970392.

The previous prime is 6158911103. The next prime is 6158911223. The reversal of 6158911212 is 2121198516.

6158911212 is a `hidden beast` number, since 61 + 589 + 1 + 1 + 2 + 12 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 171080867 = 6158911212 / (6 + 1 + 5 + 8 + 9 + 1 + 1 + 2 + 1 + 2).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 85540398 + ... + 85540469.

Almost surely, 2^6158911212 is an apocalyptic number.

It is an amenable number.

6158911212 is an abundant number, since it is smaller than the sum of its proper divisors (9409447776).

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

6158911212 is a wasteful number, since it uses less digits than its factorization.

6158911212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171080877 (or 171080872 counting only the distinct ones).

The product of its digits is 8640, while the sum is 36.

The square root of 6158911212 is about 78478.7309530423. The cubic root of 6158911212 is about 1833.0232817234.

The spelling of 6158911212 in words is "six billion, one hundred fifty-eight million, nine hundred eleven thousand, two hundred twelve".