161370504471 has 16 divisors (see below), whose sum is σ = 234790115328. Its totient is φ = 97771396800.

The previous prime is 161370504457. The next prime is 161370504479. The reversal of 161370504471 is 174405073161.

It is a happy number.

It is not a de Polignac number, because 161370504471 - 2⁵ = 161370504439 is a prime.

It is a super-3 number, since 3×161370504471³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161370504479) 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, 609126 + ... + 832931.

It is an arithmetic number, because the mean of its divisors is an integer number (14674382208).

Almost surely, 2^161370504471 is an apocalyptic number.

161370504471 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

161370504471 is a deficient number, since it is larger than the sum of its proper divisors (73419610857).

161370504471 is a wasteful number, since it uses less digits than its factorization.

161370504471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1445462.

The product of its (nonzero) digits is 70560, while the sum is 39.

The spelling of 161370504471 in words is "one hundred sixty-one billion, three hundred seventy million, five hundred four thousand, four hundred seventy-one".