161004644142 has 8 divisors (see below), whose sum is σ = 322009288296. Its totient is φ = 53668214712.

The previous prime is 161004644131. The next prime is 161004644167. The reversal of 161004644142 is 241446400161.

It is a sphenic number, since it is the product of 3 distinct primes.

161004644142 is an admirable number.

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, 13417053673 + ... + 13417053684.

It is an arithmetic number, because the mean of its divisors is an integer number (40251161037).

Almost surely, 2^161004644142 is an apocalyptic number.

161004644142 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

161004644142 is a wasteful number, since it uses less digits than its factorization.

161004644142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26834107362.

The product of its (nonzero) digits is 18432, while the sum is 33.

The spelling of 161004644142 in words is "one hundred sixty-one billion, four million, six hundred forty-four thousand, one hundred forty-two".