161451614534 has 32 divisors (see below), whose sum is σ = 282600804096. Its totient is φ = 67742494560.

The previous prime is 161451614503. The next prime is 161451614539. The reversal of 161451614534 is 435416154161.

161451614534 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 161451614491 and 161451614500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161451614539) 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, 113549 + ... + 579479.

It is an arithmetic number, because the mean of its divisors is an integer number (8831275128).

Almost surely, 2^161451614534 is an apocalyptic number.

161451614534 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

161451614534 is a deficient number, since it is larger than the sum of its proper divisors (121149189562).

161451614534 is a wasteful number, since it uses less digits than its factorization.

161451614534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466460.

The product of its digits is 172800, while the sum is 41.

Adding to 161451614534 its reverse (435416154161), we get a palindrome (596867768695).

The spelling of 161451614534 in words is "one hundred sixty-one billion, four hundred fifty-one million, six hundred fourteen thousand, five hundred thirty-four".