163651255553412 has 72 divisors (see below), whose sum is σ = 458016268443552. Its totient is φ = 48851121052800.

The previous prime is 163651255553381. The next prime is 163651255553447. The reversal of 163651255553412 is 214355552156361.

163651255553412 is a `hidden beast` number, since 1 + 6 + 3 + 6 + 5 + 125 + 55 + 53 + 412 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3084008889 + ... + 3084061952.

It is an arithmetic number, because the mean of its divisors is an integer number (6361337061716).

Almost surely, 2^{163651255553412} is an apocalyptic number.

163651255553412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

163651255553412 is an abundant number, since it is smaller than the sum of its proper divisors (294365012890140).

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

163651255553412 is a wasteful number, since it uses less digits than its factorization.

163651255553412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6168070929 (or 6168070924 counting only the distinct ones).

The product of its digits is 16200000, while the sum is 54.

The spelling of 163651255553412 in words is "one hundred sixty-three trillion, six hundred fifty-one billion, two hundred fifty-five million, five hundred fifty-three thousand, four hundred twelve".