161861027162 has 8 divisors (see below), whose sum is σ = 248437855776. Its totient is φ = 79048408572.

The previous prime is 161861027129. The next prime is 161861027177. The reversal of 161861027162 is 261720168161.

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

It is a super-2 number, since 2×161861027162² (a number of 23 digits) contains 22 as substring.

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, 941052398 + ... + 941052569.

It is an arithmetic number, because the mean of its divisors is an integer number (31054731972).

Almost surely, 2^161861027162 is an apocalyptic number.

161861027162 is a deficient number, since it is larger than the sum of its proper divisors (86576828614).

161861027162 is a wasteful number, since it uses less digits than its factorization.

161861027162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1882105012.

The product of its (nonzero) digits is 48384, while the sum is 41.

The spelling of 161861027162 in words is "one hundred sixty-one billion, eight hundred sixty-one million, twenty-seven thousand, one hundred sixty-two".