161476312427 has 4 divisors (see below), whose sum is σ = 161503022016. Its totient is φ = 161449602840.

The previous prime is 161476312411. The next prime is 161476312499. The reversal of 161476312427 is 724213674161.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 724213674161 = 7393 ⋅97959377.

It is a cyclic number.

It is not a de Polignac number, because 161476312427 - 2⁴ = 161476312411 is a prime.

It is a super-2 number, since 2×161476312427² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161476317427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13345724 + ... + 13357817.

It is an arithmetic number, because the mean of its divisors is an integer number (40375755504).

Almost surely, 2^161476312427 is an apocalyptic number.

161476312427 is a deficient number, since it is larger than the sum of its proper divisors (26709589).

161476312427 is an equidigital number, since it uses as much as digits as its factorization.

161476312427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26709588.

The product of its digits is 338688, while the sum is 44.

Adding to 161476312427 its reverse (724213674161), we get a palindrome (885689986588).

The spelling of 161476312427 in words is "one hundred sixty-one billion, four hundred seventy-six million, three hundred twelve thousand, four hundred twenty-seven".