163461405534 has 32 divisors (see below), whose sum is σ = 377824124160. Its totient is φ = 46178501952.

The previous prime is 163461405491. The next prime is 163461405581. The reversal of 163461405534 is 435504164361.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21861084 + ... + 21868559.

It is an arithmetic number, because the mean of its divisors is an integer number (11807003880).

Almost surely, 2^163461405534 is an apocalyptic number.

163461405534 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

163461405534 is an abundant number, since it is smaller than the sum of its proper divisors (214362718626).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

163461405534 is a wasteful number, since it uses less digits than its factorization.

163461405534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43729744.

The product of its (nonzero) digits is 518400, while the sum is 42.

Adding to 163461405534 its reverse (435504164361), we get a palindrome (598965569895).

The spelling of 163461405534 in words is "one hundred sixty-three billion, four hundred sixty-one million, four hundred five thousand, five hundred thirty-four".