1955650163 has 4 divisors (see below), whose sum is σ = 1957673520. Its totient is φ = 1953626808.

The previous prime is 1955650139. The next prime is 1955650201. The reversal of 1955650163 is 3610565591.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3610565591 = 239 ⋅15106969.

It is a cyclic number.

It is not a de Polignac number, because 1955650163 - 2⁸ = 1955649907 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1955650163.

It is not an unprimeable number, because it can be changed into a prime (1955653163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1010228 + ... + 1012161.

It is an arithmetic number, because the mean of its divisors is an integer number (489418380).

Almost surely, 2^1955650163 is an apocalyptic number.

1955650163 is a deficient number, since it is larger than the sum of its proper divisors (2023357).

1955650163 is an equidigital number, since it uses as much as digits as its factorization.

1955650163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2023356.

The product of its (nonzero) digits is 121500, while the sum is 41.

The square root of 1955650163 is about 44222.7335541348. The cubic root of 1955650163 is about 1250.5384694472.

The spelling of 1955650163 in words is "one billion, nine hundred fifty-five million, six hundred fifty thousand, one hundred sixty-three".