1907568113161 has 2 divisors, whose sum is σ = 1907568113162. Its totient is φ = 1907568113160.

The previous prime is 1907568113159. The next prime is 1907568113167. The reversal of 1907568113161 is 1613118657091.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1903243735561 + 4324377600 = 1379581^2 + 65760^2 .

It is a cyclic number.

It is not a de Polignac number, because 1907568113161 - 2¹ = 1907568113159 is a prime.

It is a super-2 number, since 2×1907568113161² (a number of 25 digits) contains 22 as substring.

Together with 1907568113159, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1907568113167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 953784056580 + 953784056581.

It is an arithmetic number, because the mean of its divisors is an integer number (953784056581).

Almost surely, 2^{1907568113161} is an apocalyptic number.

It is an amenable number.

1907568113161 is a deficient number, since it is larger than the sum of its proper divisors (1).

1907568113161 is an equidigital number, since it uses as much as digits as its factorization.

1907568113161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 272160, while the sum is 49.

The spelling of 1907568113161 in words is "one trillion, nine hundred seven billion, five hundred sixty-eight million, one hundred thirteen thousand, one hundred sixty-one".