242163191540 has 48 divisors (see below), whose sum is σ = 541162944000. Its totient is φ = 90709166592.

The previous prime is 242163191539. The next prime is 242163191579. The reversal of 242163191540 is 45191361242.

It is a super-2 number, since 2×242163191540² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 242163191494 and 242163191503.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1721900 + ... + 1857219.

It is an arithmetic number, because the mean of its divisors is an integer number (11274228000).

Almost surely, 2^242163191540 is an apocalyptic number.

242163191540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

242163191540 is an abundant number, since it is smaller than the sum of its proper divisors (298999752460).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

242163191540 is a wasteful number, since it uses less digits than its factorization.

242163191540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3579344 (or 3579342 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 38.

The spelling of 242163191540 in words is "two hundred forty-two billion, one hundred sixty-three million, one hundred ninety-one thousand, five hundred forty".