163611605221630 has 16 divisors (see below), whose sum is σ = 294518789220384. Its totient is φ = 65440664350560.

The previous prime is 163611605221579. The next prime is 163611605221639. The reversal of 163611605221630 is 36122506116361.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163611605221639) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 497044506 + ... + 497373565.

It is an arithmetic number, because the mean of its divisors is an integer number (18407424326274).

Almost surely, 2^{163611605221630} is an apocalyptic number.

163611605221630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

163611605221630 is a deficient number, since it is larger than the sum of its proper divisors (130907183998754).

163611605221630 is a wasteful number, since it uses less digits than its factorization.

163611605221630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 994434531.

The product of its (nonzero) digits is 233280, while the sum is 43.

The spelling of 163611605221630 in words is "one hundred sixty-three trillion, six hundred eleven billion, six hundred five million, two hundred twenty-one thousand, six hundred thirty".