161101650139 has 8 divisors (see below), whose sum is σ = 161282159280. Its totient is φ = 160921230336.

The previous prime is 161101650121. The next prime is 161101650187. The reversal of 161101650139 is 931056101161.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 161101650139 - 2¹¹ = 161101648091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161101650839) 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, 3978507 + ... + 4018795.

It is an arithmetic number, because the mean of its divisors is an integer number (20160269910).

Almost surely, 2^161101650139 is an apocalyptic number.

161101650139 is a deficient number, since it is larger than the sum of its proper divisors (180509141).

161101650139 is a wasteful number, since it uses less digits than its factorization.

161101650139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44669.

The product of its (nonzero) digits is 4860, while the sum is 34.

The spelling of 161101650139 in words is "one hundred sixty-one billion, one hundred one million, six hundred fifty thousand, one hundred thirty-nine".