106551178513 has 4 divisors (see below), whose sum is σ = 114747423028. Its totient is φ = 98354934000.

The previous prime is 106551178493. The next prime is 106551178523. The reversal of 106551178513 is 315871155601.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 28124296209 + 78426882304 = 167703^2 + 280048^2 .

It is a cyclic number.

It is not a de Polignac number, because 106551178513 - 2²⁹ = 106014307601 is a prime.

It is a super-2 number, since 2×106551178513² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 106551178513.

It is not an unprimeable number, because it can be changed into a prime (106551178523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4098122238 + ... + 4098122263.

It is an arithmetic number, because the mean of its divisors is an integer number (28686855757).

Almost surely, 2^106551178513 is an apocalyptic number.

106551178513 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

106551178513 is a deficient number, since it is larger than the sum of its proper divisors (8196244515).

106551178513 is an equidigital number, since it uses as much as digits as its factorization.

106551178513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8196244514.

The product of its (nonzero) digits is 126000, while the sum is 43.

The spelling of 106551178513 in words is "one hundred six billion, five hundred fifty-one million, one hundred seventy-eight thousand, five hundred thirteen".