106521851142 has 80 divisors (see below), whose sum is σ = 287143338240. Its totient is φ = 28832976432.

The previous prime is 106521851141. The next prime is 106521851213. The reversal of 106521851142 is 241158125601.

106521851142 is a `hidden beast` number, since 1 + 0 + 6 + 521 + 85 + 11 + 42 = 666.

It is a super-2 number, since 2×106521851142² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 106521851097 and 106521851106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106521851141) 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 39 ways as a sum of consecutive naturals, for example, 2450418 + ... + 2493509.

It is an arithmetic number, because the mean of its divisors is an integer number (3589291728).

Almost surely, 2^106521851142 is an apocalyptic number.

106521851142 is an abundant number, since it is smaller than the sum of its proper divisors (180621487098).

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

106521851142 is a wasteful number, since it uses less digits than its factorization.

106521851142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4943967 (or 4943958 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 36.

Adding to 106521851142 its reverse (241158125601), we get a palindrome (347679976743).

The spelling of 106521851142 in words is "one hundred six billion, five hundred twenty-one million, eight hundred fifty-one thousand, one hundred forty-two".