161350552536 has 64 divisors (see below), whose sum is σ = 424697750400. Its totient is φ = 50941882368.

The previous prime is 161350552529. The next prime is 161350552651. The reversal of 161350552536 is 635255053161.

161350552536 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2241375 + ... + 2312241.

It is an arithmetic number, because the mean of its divisors is an integer number (6635902350).

Almost surely, 2^161350552536 is an apocalyptic number.

It is an amenable number.

161350552536 is an abundant number, since it is smaller than the sum of its proper divisors (263347197864).

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

161350552536 is a wasteful number, since it uses less digits than its factorization.

161350552536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75888 (or 75884 counting only the distinct ones).

The product of its (nonzero) digits is 405000, while the sum is 42.

The spelling of 161350552536 in words is "one hundred sixty-one billion, three hundred fifty million, five hundred fifty-two thousand, five hundred thirty-six".