106215113646 has 32 divisors (see below), whose sum is σ = 241522744320. Its totient is φ = 34581664152.

The previous prime is 106215113629. The next prime is 106215113647. The reversal of 106215113646 is 646311512601.

106215113646 is a `hidden beast` number, since 1 + 0 + 6 + 2 + 1 + 5 + 1 + 1 + 3 + 646 = 666.

It is a super-2 number, since 2×106215113646² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 106215113646.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106215113647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22869150 + ... + 22873793.

It is an arithmetic number, because the mean of its divisors is an integer number (7547585760).

Almost surely, 2^106215113646 is an apocalyptic number.

106215113646 is an abundant number, since it is smaller than the sum of its proper divisors (135307630674).

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

106215113646 is a wasteful number, since it uses less digits than its factorization.

106215113646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45742997 (or 45742991 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The spelling of 106215113646 in words is "one hundred six billion, two hundred fifteen million, one hundred thirteen thousand, six hundred forty-six".