161775527124 has 48 divisors (see below), whose sum is σ = 394910320896. Its totient is φ = 51490560000.

The previous prime is 161775527051. The next prime is 161775527131. The reversal of 161775527124 is 421725577161.

161775527124 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×161775527124² (a number of 23 digits) contains 22 as substring.

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, 3474877 + ... + 3521124.

It is an arithmetic number, because the mean of its divisors is an integer number (8227298352).

Almost surely, 2^161775527124 is an apocalyptic number.

It is an amenable number.

161775527124 is an abundant number, since it is smaller than the sum of its proper divisors (233134793772).

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

161775527124 is a wasteful number, since it uses less digits than its factorization.

161775527124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6996096 (or 6996094 counting only the distinct ones).

The product of its digits is 823200, while the sum is 48.

The spelling of 161775527124 in words is "one hundred sixty-one billion, seven hundred seventy-five million, five hundred twenty-seven thousand, one hundred twenty-four".