2155772114 has 8 divisors (see below), whose sum is σ = 3272618160. Its totient is φ = 1064899396.

The previous prime is 2155772093. The next prime is 2155772123. The reversal of 2155772114 is 4112775512.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6493124 + ... + 6493455.

It is an arithmetic number, because the mean of its divisors is an integer number (409077270).

Almost surely, 2^2155772114 is an apocalyptic number.

2155772114 is a deficient number, since it is larger than the sum of its proper divisors (1116846046).

2155772114 is a wasteful number, since it uses less digits than its factorization.

2155772114 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12986664.

The product of its digits is 19600, while the sum is 35.

The square root of 2155772114 is about 46430.2930639039. The cubic root of 2155772114 is about 1291.8168646003.

The spelling of 2155772114 in words is "two billion, one hundred fifty-five million, seven hundred seventy-two thousand, one hundred fourteen".