188470907161 has 2 divisors, whose sum is σ = 188470907162. Its totient is φ = 188470907160.

The previous prime is 188470907077. The next prime is 188470907221. The reversal of 188470907161 is 161709074881.

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., 117005043600 + 71465863561 = 342060^2 + 267331^2 .

It is a cyclic number.

It is not a de Polignac number, because 188470907161 - 2⁷ = 188470907033 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 188470907099 and 188470907108.

It is not a weakly prime, because it can be changed into another prime (188470907561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94235453580 + 94235453581.

It is an arithmetic number, because the mean of its divisors is an integer number (94235453581).

Almost surely, 2^188470907161 is an apocalyptic number.

It is an amenable number.

188470907161 is a deficient number, since it is larger than the sum of its proper divisors (1).

188470907161 is an equidigital number, since it uses as much as digits as its factorization.

188470907161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 677376, while the sum is 52.

The spelling of 188470907161 in words is "one hundred eighty-eight billion, four hundred seventy million, nine hundred seven thousand, one hundred sixty-one".