163151233550 has 24 divisors (see below), whose sum is σ = 303473935800. Its totient is φ = 65257774880.

The previous prime is 163151233541. The next prime is 163151233559. The reversal of 163151233550 is 55332151361.

It is an interprime number because it is at equal distance from previous prime (163151233541) and next prime (163151233559).

It is a self number, because there is not a number n which added to its sum of digits gives 163151233550.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163151233559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1504556 + ... + 1609344.

It is an arithmetic number, because the mean of its divisors is an integer number (12644747325).

Almost surely, 2^163151233550 is an apocalyptic number.

163151233550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

163151233550 is a deficient number, since it is larger than the sum of its proper divisors (140322702250).

163151233550 is a wasteful number, since it uses less digits than its factorization.

163151233550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135940 (or 135935 counting only the distinct ones).

The product of its (nonzero) digits is 40500, while the sum is 35.

The spelling of 163151233550 in words is "one hundred sixty-three billion, one hundred fifty-one million, two hundred thirty-three thousand, five hundred fifty".