10021650105 has 32 divisors (see below), whose sum is σ = 16145289216. Its totient is φ = 5308115904.

The previous prime is 10021650103. The next prime is 10021650139. The reversal of 10021650105 is 50105612001.

It is not a de Polignac number, because 10021650105 - 2¹ = 10021650103 is a prime.

It is a super-2 number, since 2×10021650105² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10021650103) 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 31 ways as a sum of consecutive naturals, for example, 1478454 + ... + 1485216.

It is an arithmetic number, because the mean of its divisors is an integer number (504540288).

Almost surely, 2^10021650105 is an apocalyptic number.

10021650105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10021650105 is a deficient number, since it is larger than the sum of its proper divisors (6123639111).

10021650105 is a wasteful number, since it uses less digits than its factorization.

10021650105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7437.

The product of its (nonzero) digits is 300, while the sum is 21.

The spelling of 10021650105 in words is "ten billion, twenty-one million, six hundred fifty thousand, one hundred five".