6156201906 has 48 divisors (see below), whose sum is σ = 14022463200. Its totient is φ = 2001987360.

The previous prime is 6156201869. The next prime is 6156201911. The reversal of 6156201906 is 6091026516.

6156201906 is a `hidden beast` number, since 6 + 1 + 562 + 0 + 1 + 90 + 6 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 56865 + ... + 124683.

It is an arithmetic number, because the mean of its divisors is an integer number (292134650).

Almost surely, 2^6156201906 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6156201906, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7011231600).

6156201906 is an abundant number, since it is smaller than the sum of its proper divisors (7866261294).

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

6156201906 is a wasteful number, since it uses less digits than its factorization.

6156201906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67912 (or 67865 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 6156201906 is about 78461.4676513255. The cubic root of 6156201906 is about 1832.7544598924.

The spelling of 6156201906 in words is "six billion, one hundred fifty-six million, two hundred one thousand, nine hundred six".