163835137741 has 4 divisors (see below), whose sum is σ = 178729241184. Its totient is φ = 148941034300.

The previous prime is 163835137727. The next prime is 163835137759. The reversal of 163835137741 is 147731538361.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 163835137741 - 2¹¹ = 163835135693 is a prime.

It is a super-2 number, since 2×163835137741² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163835137771) 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, 7447051705 + ... + 7447051726.

It is an arithmetic number, because the mean of its divisors is an integer number (44682310296).

Almost surely, 2^163835137741 is an apocalyptic number.

163835137741 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

163835137741 is a deficient number, since it is larger than the sum of its proper divisors (14894103443).

163835137741 is a wasteful number, since it uses less digits than its factorization.

163835137741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14894103442.

The product of its digits is 1270080, while the sum is 49.

The spelling of 163835137741 in words is "one hundred sixty-three billion, eight hundred thirty-five million, one hundred thirty-seven thousand, seven hundred forty-one".