161053540044664 has 16 divisors (see below), whose sum is σ = 301975556758200. Its totient is φ = 80526724909152.

The previous prime is 161053540044541. The next prime is 161053540044697. The reversal of 161053540044664 is 466440045350161.

161053540044664 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×161053540044664² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

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, 13258554 + ... + 22313590.

Almost surely, 2^{161053540044664} is an apocalyptic number.

It is an amenable number.

161053540044664 is a deficient number, since it is larger than the sum of its proper divisors (140922016713536).

161053540044664 is a wasteful number, since it uses less digits than its factorization.

161053540044664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11278302 (or 11278298 counting only the distinct ones).

The product of its (nonzero) digits is 4147200, while the sum is 49.

The spelling of 161053540044664 in words is "one hundred sixty-one trillion, fifty-three billion, five hundred forty million, forty-four thousand, six hundred sixty-four".