2156650105 has 8 divisors (see below), whose sum is σ = 2677221000. Its totient is φ = 1665826176.

The previous prime is 2156650103. The next prime is 2156650147. The reversal of 2156650105 is 5010566512.

2156650105 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 715081081 + 1441569024 = 26741^2 + 37968^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 2156650105 - 2¹ = 2156650103 is a prime.

It is a super-2 number, since 2×2156650105² = 9302279350793022050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2156650103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7436580 + ... + 7436869.

It is an arithmetic number, because the mean of its divisors is an integer number (334652625).

Almost surely, 2^2156650105 is an apocalyptic number.

It is an amenable number.

2156650105 is a deficient number, since it is larger than the sum of its proper divisors (520570895).

2156650105 is a wasteful number, since it uses less digits than its factorization.

2156650105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14873483.

The product of its (nonzero) digits is 9000, while the sum is 31.

The square root of 2156650105 is about 46439.7470385014. The cubic root of 2156650105 is about 1291.9922154844.

The spelling of 2156650105 in words is "two billion, one hundred fifty-six million, six hundred fifty thousand, one hundred five".