106643665005250 has 16 divisors (see below), whose sum is σ = 199636940890296. Its totient is φ = 42657466002000.

The previous prime is 106643665005223. The next prime is 106643665005257. The reversal of 106643665005250 is 52500566346601.

It can be written as a sum of positive squares in 4 ways, for example, as 57687321277089 + 48956343728161 = 7595217^2 + 6996881^2 .

It is a super-2 number, since 2×106643665005250² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 106643665005194 and 106643665005203.

It is not an unprimeable number, because it can be changed into a prime (106643665005257) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 213287329761 + ... + 213287330260.

Almost surely, 2^{106643665005250} is an apocalyptic number.

106643665005250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

106643665005250 is a deficient number, since it is larger than the sum of its proper divisors (92993275885046).

106643665005250 is an equidigital number, since it uses as much as digits as its factorization.

106643665005250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426574660038 (or 426574660028 counting only the distinct ones).

The product of its (nonzero) digits is 3888000, while the sum is 49.

The spelling of 106643665005250 in words is "one hundred six trillion, six hundred forty-three billion, six hundred sixty-five million, five thousand, two hundred fifty".