106215512645 has 16 divisors (see below), whose sum is σ = 140479230528. Its totient is φ = 76451274240.

The previous prime is 106215512633. The next prime is 106215512699. The reversal of 106215512645 is 546215512601.

It is a de Polignac number, because none of the positive numbers 2^k-106215512645 is a prime.

It is a super-2 number, since 2×106215512645² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 106215512599 and 106215512608.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 9949259 + ... + 9959928.

It is an arithmetic number, because the mean of its divisors is an integer number (8779951908).

Almost surely, 2^106215512645 is an apocalyptic number.

It is an amenable number.

106215512645 is a deficient number, since it is larger than the sum of its proper divisors (34263717883).

106215512645 is a wasteful number, since it uses less digits than its factorization.

106215512645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19909300.

The product of its (nonzero) digits is 72000, while the sum is 38.

The spelling of 106215512645 in words is "one hundred six billion, two hundred fifteen million, five hundred twelve thousand, six hundred forty-five".