2155672206 has 12 divisors (see below), whose sum is σ = 4670623152. Its totient is φ = 718557396.

The previous prime is 2155672193. The next prime is 2155672213. The reversal of 2155672206 is 6022765512.

It is a congruent number.

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, 59879766 + ... + 59879801.

It is an arithmetic number, because the mean of its divisors is an integer number (389218596).

Almost surely, 2^2155672206 is an apocalyptic number.

2155672206 is an abundant number, since it is smaller than the sum of its proper divisors (2514950946).

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

2155672206 is a wasteful number, since it uses less digits than its factorization.

2155672206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119759575 (or 119759572 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 2155672206 is about 46429.2171590261. The cubic root of 2155672206 is about 1291.7969081259.

The spelling of 2155672206 in words is "two billion, one hundred fifty-five million, six hundred seventy-two thousand, two hundred six".