161469468044 has 12 divisors (see below), whose sum is σ = 289143001224. Its totient is φ = 78857181984.

The previous prime is 161469467947. The next prime is 161469468053. The reversal of 161469468044 is 440864964161.

It is a happy number.

It is a super-2 number, since 2×161469468044² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 469387817 + ... + 469388160.

It is an arithmetic number, because the mean of its divisors is an integer number (24095250102).

Almost surely, 2^161469468044 is an apocalyptic number.

It is an amenable number.

161469468044 is a deficient number, since it is larger than the sum of its proper divisors (127673533180).

161469468044 is a wasteful number, since it uses less digits than its factorization.

161469468044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 938776024 (or 938776022 counting only the distinct ones).

The product of its (nonzero) digits is 3981312, while the sum is 53.

The spelling of 161469468044 in words is "one hundred sixty-one billion, four hundred sixty-nine million, four hundred sixty-eight thousand, forty-four".