2106177551 has 8 divisors (see below), whose sum is σ = 2198430720. Its totient is φ = 2013981112.

The previous prime is 2106177523. The next prime is 2106177559. The reversal of 2106177551 is 1557716012.

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 2106177551 - 2⁶ = 2106177487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2106177559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73226 + ... + 97848.

It is an arithmetic number, because the mean of its divisors is an integer number (274803840).

Almost surely, 2^2106177551 is an apocalyptic number.

2106177551 is a deficient number, since it is larger than the sum of its proper divisors (92253169).

2106177551 is a wasteful number, since it uses less digits than its factorization.

2106177551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28365.

The product of its (nonzero) digits is 14700, while the sum is 35.

The square root of 2106177551 is about 45893.1100602258. The cubic root of 2106177551 is about 1281.8336250936.

The spelling of 2106177551 in words is "two billion, one hundred six million, one hundred seventy-seven thousand, five hundred fifty-one".