2661350336429 has 2 divisors, whose sum is σ = 2661350336430. Its totient is φ = 2661350336428.

The previous prime is 2661350336399. The next prime is 2661350336467. The reversal of 2661350336429 is 9246330531662.

2661350336429 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1428801855625 + 1232548480804 = 1195325^2 + 1110202^2 .

It is a cyclic number.

It is not a de Polignac number, because 2661350336429 - 2¹⁶ = 2661350270893 is a prime.

It is a super-2 number, since 2×2661350336429² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2661350333429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1330675168214 + 1330675168215.

It is an arithmetic number, because the mean of its divisors is an integer number (1330675168215).

Almost surely, 2^{2661350336429} is an apocalyptic number.

It is an amenable number.

2661350336429 is a deficient number, since it is larger than the sum of its proper divisors (1).

2661350336429 is an equidigital number, since it uses as much as digits as its factorization.

2661350336429 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4199040, while the sum is 50.

The spelling of 2661350336429 in words is "two trillion, six hundred sixty-one billion, three hundred fifty million, three hundred thirty-six thousand, four hundred twenty-nine".