2159552906 has 8 divisors (see below), whose sum is σ = 3702090720. Its totient is φ = 925522668.

The previous prime is 2159552903. The next prime is 2159552917. The reversal of 2159552906 is 6092559512.

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

It is not an unprimeable number, because it can be changed into a prime (2159552903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77126876 + ... + 77126903.

It is an arithmetic number, because the mean of its divisors is an integer number (462761340).

Almost surely, 2^2159552906 is an apocalyptic number.

2159552906 is a deficient number, since it is larger than the sum of its proper divisors (1542537814).

2159552906 is a wasteful number, since it uses less digits than its factorization.

2159552906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154253788.

The product of its (nonzero) digits is 243000, while the sum is 44.

The square root of 2159552906 is about 46470.9899399615. The cubic root of 2159552906 is about 1292.5716194552.

The spelling of 2159552906 in words is "two billion, one hundred fifty-nine million, five hundred fifty-two thousand, nine hundred six".