163543405420455 has 64 divisors (see below), whose sum is σ = 264143570116608. Its totient is φ = 86402289254400.

The previous prime is 163543405420429. The next prime is 163543405420517. The reversal of 163543405420455 is 554024504345361.

It is not a de Polignac number, because 163543405420455 - 2⁷ = 163543405420327 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 163543405420398 and 163543405420407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1809043255 + ... + 1809133655.

It is an arithmetic number, because the mean of its divisors is an integer number (4127243283072).

Almost surely, 2^{163543405420455} is an apocalyptic number.

163543405420455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

163543405420455 is a deficient number, since it is larger than the sum of its proper divisors (100600164696153).

163543405420455 is a wasteful number, since it uses less digits than its factorization.

163543405420455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93056.

The product of its (nonzero) digits is 17280000, while the sum is 51.

The spelling of 163543405420455 in words is "one hundred sixty-three trillion, five hundred forty-three billion, four hundred five million, four hundred twenty thousand, four hundred fifty-five".