161354123463 has 12 divisors (see below), whose sum is σ = 232960983720. Its totient is φ = 99294844896.

The previous prime is 161354123423. The next prime is 161354123471. The reversal of 161354123463 is 364321453161.

It is not a de Polignac number, because 161354123463 - 2¹³ = 161354115271 is a prime.

It is a super-2 number, since 2×161354123463² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161354123423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 159125848 + ... + 159126861.

It is an arithmetic number, because the mean of its divisors is an integer number (19413415310).

Almost surely, 2^161354123463 is an apocalyptic number.

161354123463 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

161354123463 is a deficient number, since it is larger than the sum of its proper divisors (71606860257).

161354123463 is a wasteful number, since it uses less digits than its factorization.

161354123463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318252738 (or 318252725 counting only the distinct ones).

The product of its digits is 155520, while the sum is 39.

The spelling of 161354123463 in words is "one hundred sixty-one billion, three hundred fifty-four million, one hundred twenty-three thousand, four hundred sixty-three".