161841104672042 has 32 divisors (see below), whose sum is σ = 246865889700864. Its totient is φ = 79561881126000.

The previous prime is 161841104672021. The next prime is 161841104672057. The reversal of 161841104672042 is 240276401148161.

161841104672042 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 2×161841104672042² (a number of 29 digits) contains 22 as substring.

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, 614609693 + ... + 614872959.

It is an arithmetic number, because the mean of its divisors is an integer number (7714559053152).

Almost surely, 2^{161841104672042} is an apocalyptic number.

161841104672042 is a deficient number, since it is larger than the sum of its proper divisors (85024785028822).

161841104672042 is a wasteful number, since it uses less digits than its factorization.

161841104672042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281114.

The product of its (nonzero) digits is 516096, while the sum is 47.

The spelling of 161841104672042 in words is "one hundred sixty-one trillion, eight hundred forty-one billion, one hundred four million, six hundred seventy-two thousand, forty-two".