161151181235 has 8 divisors (see below), whose sum is σ = 210961546416. Its totient is φ = 117200859040.

The previous prime is 161151181201. The next prime is 161151181271. The reversal of 161151181235 is 532181151161.

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

It is not a de Polignac number, because 161151181235 - 2²⁶ = 161084072371 is a prime.

It is a super-2 number, since 2×161151181235² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 161151181195 and 161151181204.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1465010684 + ... + 1465010793.

It is an arithmetic number, because the mean of its divisors is an integer number (26370193302).

Almost surely, 2^161151181235 is an apocalyptic number.

161151181235 is a deficient number, since it is larger than the sum of its proper divisors (49810365181).

161151181235 is a wasteful number, since it uses less digits than its factorization.

161151181235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2930021493.

The product of its digits is 7200, while the sum is 35.

The spelling of 161151181235 in words is "one hundred sixty-one billion, one hundred fifty-one million, one hundred eighty-one thousand, two hundred thirty-five".