161604031929754 has 16 divisors (see below), whose sum is σ = 248965019660448. Its totient is φ = 78615822866832.

The previous prime is 161604031929733. The next prime is 161604031929803. The reversal of 161604031929754 is 457929130406161.

It is a happy number.

161604031929754 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 2×161604031929754² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30217432 + ... + 35161075.

It is an arithmetic number, because the mean of its divisors is an integer number (15560313728778).

Almost surely, 2^{161604031929754} is an apocalyptic number.

161604031929754 is a deficient number, since it is larger than the sum of its proper divisors (87360987730694).

161604031929754 is a wasteful number, since it uses less digits than its factorization.

161604031929754 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65411949.

The product of its (nonzero) digits is 9797760, while the sum is 58.

The spelling of 161604031929754 in words is "one hundred sixty-one trillion, six hundred four billion, thirty-one million, nine hundred twenty-nine thousand, seven hundred fifty-four".