106005661639 has 2 divisors, whose sum is σ = 106005661640. Its totient is φ = 106005661638.

The previous prime is 106005661583. The next prime is 106005661651. The reversal of 106005661639 is 936166500601.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 106005661639 - 2¹⁵ = 106005628871 is a prime.

It is a super-2 number, since 2×106005661639² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 106005661595 and 106005661604.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (106005661339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53002830819 + 53002830820.

It is an arithmetic number, because the mean of its divisors is an integer number (53002830820).

Almost surely, 2^106005661639 is an apocalyptic number.

106005661639 is a deficient number, since it is larger than the sum of its proper divisors (1).

106005661639 is an equidigital number, since it uses as much as digits as its factorization.

106005661639 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 174960, while the sum is 43.

The spelling of 106005661639 in words is "one hundred six billion, five million, six hundred sixty-one thousand, six hundred thirty-nine".