161611556500162 has 8 divisors (see below), whose sum is σ = 242419758181776. Its totient is φ = 80804970439572.

The previous prime is 161611556500109. The next prime is 161611556500183. The reversal of 161611556500162 is 261005655116161.

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

It is a super-2 number, since 2×161611556500162² (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 3 ways as a sum of consecutive naturals, for example, 403655148 + ... + 404055319.

It is an arithmetic number, because the mean of its divisors is an integer number (30302469772722).

Almost surely, 2^{161611556500162} is an apocalyptic number.

161611556500162 is a deficient number, since it is larger than the sum of its proper divisors (80808201681614).

161611556500162 is a wasteful number, since it uses less digits than its factorization.

161611556500162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 807810512.

The product of its (nonzero) digits is 324000, while the sum is 46.

The spelling of 161611556500162 in words is "one hundred sixty-one trillion, six hundred eleven billion, five hundred fifty-six million, five hundred thousand, one hundred sixty-two".