161860802134 has 32 divisors (see below), whose sum is σ = 260383737600. Its totient is φ = 75231516960.

The previous prime is 161860802119. The next prime is 161860802161. The reversal of 161860802134 is 431208068161.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1146199 + ... + 1279645.

It is an arithmetic number, because the mean of its divisors is an integer number (8136991800).

Almost surely, 2^161860802134 is an apocalyptic number.

161860802134 is a deficient number, since it is larger than the sum of its proper divisors (98522935466).

161860802134 is a wasteful number, since it uses less digits than its factorization.

161860802134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134068.

The product of its (nonzero) digits is 55296, while the sum is 40.

The spelling of 161860802134 in words is "one hundred sixty-one billion, eight hundred sixty million, eight hundred two thousand, one hundred thirty-four".