106986621541 has 2 divisors, whose sum is σ = 106986621542. Its totient is φ = 106986621540.

The previous prime is 106986621503. The next prime is 106986621551. The reversal of 106986621541 is 145126689601.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 101206060641 + 5780560900 = 318129^2 + 76030^2 .

It is an emirp because it is prime and its reverse (145126689601) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 106986621541 - 2¹⁷ = 106986490469 is a prime.

It is a super-2 number, since 2×106986621541² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (106986621551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53493310770 + 53493310771.

It is an arithmetic number, because the mean of its divisors is an integer number (53493310771).

Almost surely, 2^106986621541 is an apocalyptic number.

It is an amenable number.

106986621541 is a deficient number, since it is larger than the sum of its proper divisors (1).

106986621541 is an equidigital number, since it uses as much as digits as its factorization.

106986621541 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 622080, while the sum is 49.

The spelling of 106986621541 in words is "one hundred six billion, nine hundred eighty-six million, six hundred twenty-one thousand, five hundred forty-one".