161026229669 has 8 divisors (see below), whose sum is σ = 170522958528. Its totient is φ = 151532233920.

The previous prime is 161026229641. The next prime is 161026229723. The reversal of 161026229669 is 966922620161.

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 a de Polignac number, because none of the positive numbers 2^k-161026229669 is a prime.

It is a super-2 number, since 2×161026229669² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161026229069) 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, 561347 + ... + 798224.

It is an arithmetic number, because the mean of its divisors is an integer number (21315369816).

Almost surely, 2^161026229669 is an apocalyptic number.

It is an amenable number.

161026229669 is a deficient number, since it is larger than the sum of its proper divisors (9496728859).

161026229669 is a wasteful number, since it uses less digits than its factorization.

161026229669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1366555.

The product of its (nonzero) digits is 839808, while the sum is 50.

The spelling of 161026229669 in words is "one hundred sixty-one billion, twenty-six million, two hundred twenty-nine thousand, six hundred sixty-nine".