161606115101643 has 8 divisors (see below), whose sum is σ = 215598160051008. Its totient is φ = 107675740110024.

The previous prime is 161606115101621. The next prime is 161606115101677. The reversal of 161606115101643 is 346101511606161.

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

It is not a de Polignac number, because 161606115101643 - 2⁶ = 161606115101579 is a prime.

It is a super-2 number, since 2×161606115101643² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 161606115101595 and 161606115101604.

It is not an unprimeable number, because it can be changed into a prime (161606115108643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15417483321 + ... + 15417493802.

It is an arithmetic number, because the mean of its divisors is an integer number (26949770006376).

Almost surely, 2^{161606115101643} is an apocalyptic number.

161606115101643 is a deficient number, since it is larger than the sum of its proper divisors (53992044949365).

161606115101643 is a wasteful number, since it uses less digits than its factorization.

161606115101643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30834978873.

The product of its (nonzero) digits is 77760, while the sum is 42.

The spelling of 161606115101643 in words is "one hundred sixty-one trillion, six hundred six billion, one hundred fifteen million, one hundred one thousand, six hundred forty-three".