16451507473161 has 8 divisors (see below), whose sum is σ = 21935407584480. Its totient is φ = 10967639505312.

The previous prime is 16451507473157. The next prime is 16451507473213. The reversal of 16451507473161 is 16137470515461.

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

It is not a de Polignac number, because 16451507473161 - 2² = 16451507473157 is a prime.

It is a super-2 number, since 2×16451507473161² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16451507473111) 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, 6815140 + ... + 8907813.

It is an arithmetic number, because the mean of its divisors is an integer number (2741925948060).

Almost surely, 2^{16451507473161} is an apocalyptic number.

It is an amenable number.

16451507473161 is a deficient number, since it is larger than the sum of its proper divisors (5483900111319).

16451507473161 is a wasteful number, since it uses less digits than its factorization.

16451507473161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16071735.

The product of its (nonzero) digits is 2116800, while the sum is 51.

The spelling of 16451507473161 in words is "sixteen trillion, four hundred fifty-one billion, five hundred seven million, four hundred seventy-three thousand, one hundred sixty-one".