106321300661 has 2 divisors, whose sum is σ = 106321300662. Its totient is φ = 106321300660.

The previous prime is 106321300649. The next prime is 106321300691. The reversal of 106321300661 is 166003123601.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 78028042225 + 28293258436 = 279335^2 + 168206^2 .

It is a cyclic number.

It is not a de Polignac number, because 106321300661 - 2¹⁸ = 106321038517 is a prime.

It is a super-2 number, since 2×106321300661² (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 (106321300621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53160650330 + 53160650331.

It is an arithmetic number, because the mean of its divisors is an integer number (53160650331).

Almost surely, 2^106321300661 is an apocalyptic number.

It is an amenable number.

106321300661 is a deficient number, since it is larger than the sum of its proper divisors (1).

106321300661 is an equidigital number, since it uses as much as digits as its factorization.

106321300661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 29.

The spelling of 106321300661 in words is "one hundred six billion, three hundred twenty-one million, three hundred thousand, six hundred sixty-one".