163664104534 has 24 divisors (see below), whose sum is σ = 285694571448. Its totient is φ = 70112921760.

The previous prime is 163664104517. The next prime is 163664104537. The reversal of 163664104534 is 435401466361.

It is a super-2 number, since 2×163664104534² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163664104537) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 102864 + ... + 581299.

It is an arithmetic number, because the mean of its divisors is an integer number (11903940477).

Almost surely, 2^163664104534 is an apocalyptic number.

163664104534 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

163664104534 is a deficient number, since it is larger than the sum of its proper divisors (122030466914).

163664104534 is a wasteful number, since it uses less digits than its factorization.

163664104534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 686620 (or 686613 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 43.

It can be divided in two parts, 16366 and 4104534, that added together give a square (4120900 = 2030²).

The spelling of 163664104534 in words is "one hundred sixty-three billion, six hundred sixty-four million, one hundred four thousand, five hundred thirty-four".