161434267773 has 8 divisors (see below), whose sum is σ = 215249100000. Its totient is φ = 107621140368.

The previous prime is 161434267769. The next prime is 161434267777. The reversal of 161434267773 is 377762434161.

It is an interprime number because it is at equal distance from previous prime (161434267769) and next prime (161434267777).

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

It is not a de Polignac number, because 161434267773 - 2² = 161434267769 is a prime.

It is a super-2 number, since 2×161434267773² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161434267777) 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, 185898 + ... + 597851.

It is an arithmetic number, because the mean of its divisors is an integer number (26906137500).

Almost surely, 2^161434267773 is an apocalyptic number.

It is an amenable number.

161434267773 is a deficient number, since it is larger than the sum of its proper divisors (53814832227).

161434267773 is an equidigital number, since it uses as much as digits as its factorization.

161434267773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 852411.

The product of its digits is 3556224, while the sum is 51.

The spelling of 161434267773 in words is "one hundred sixty-one billion, four hundred thirty-four million, two hundred sixty-seven thousand, seven hundred seventy-three".