161405676141 has 16 divisors (see below), whose sum is σ = 218321573184. Its totient is φ = 106056992384.

The previous prime is 161405676137. The next prime is 161405676143. The reversal of 161405676141 is 141676504161.

It is a cyclic number.

It is not a de Polignac number, because 161405676141 - 2² = 161405676137 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 161405676093 and 161405676102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161405676143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1212960 + ... + 1339433.

It is an arithmetic number, because the mean of its divisors is an integer number (13645098324).

Almost surely, 2^161405676141 is an apocalyptic number.

It is an amenable number.

161405676141 is a deficient number, since it is larger than the sum of its proper divisors (56915897043).

161405676141 is a wasteful number, since it uses less digits than its factorization.

161405676141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2552700.

The product of its (nonzero) digits is 120960, while the sum is 42.

The spelling of 161405676141 in words is "one hundred sixty-one billion, four hundred five million, six hundred seventy-six thousand, one hundred forty-one".