163125377102 has 4 divisors (see below), whose sum is σ = 244688065656. Its totient is φ = 81562688550.

The previous prime is 163125377101. The next prime is 163125377113. The reversal of 163125377102 is 201773521361.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163125377101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40781344274 + ... + 40781344277.

It is an arithmetic number, because the mean of its divisors is an integer number (61172016414).

Almost surely, 2^163125377102 is an apocalyptic number.

163125377102 is a deficient number, since it is larger than the sum of its proper divisors (81562688554).

163125377102 is an equidigital number, since it uses as much as digits as its factorization.

163125377102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81562688553.

The product of its (nonzero) digits is 52920, while the sum is 38.

Adding to 163125377102 its reverse (201773521361), we get a palindrome (364898898463).

The spelling of 163125377102 in words is "one hundred sixty-three billion, one hundred twenty-five million, three hundred seventy-seven thousand, one hundred two".