106440420029777 has 2 divisors, whose sum is σ = 106440420029778. Its totient is φ = 106440420029776.

The previous prime is 106440420029771. The next prime is 106440420029803. The reversal of 106440420029777 is 777920024044601.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 101323228611136 + 5117191418641 = 10065944^2 + 2262121^2 .

It is a cyclic number.

It is not a de Polignac number, because 106440420029777 - 2⁴ = 106440420029761 is a prime.

It is a super-2 number, since 2×106440420029777² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (106440420029771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53220210014888 + 53220210014889.

It is an arithmetic number, because the mean of its divisors is an integer number (53220210014889).

Almost surely, 2^{106440420029777} is an apocalyptic number.

It is an amenable number.

106440420029777 is a deficient number, since it is larger than the sum of its proper divisors (1).

106440420029777 is an equidigital number, since it uses as much as digits as its factorization.

106440420029777 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4741632, while the sum is 53.

The spelling of 106440420029777 in words is "one hundred six trillion, four hundred forty billion, four hundred twenty million, twenty-nine thousand, seven hundred seventy-seven".