163601451000 has 896 divisors, whose sum is σ = 630484021440. Its totient is φ = 39470976000.

The previous prime is 163601450993. The next prime is 163601451023. The reversal of 163601451000 is 154106361.

163601451000 is a `hidden beast` number, since 1 + 6 + 3 + 601 + 4 + 51 + 0 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 223 ways as a sum of consecutive naturals, for example, 578096859 + ... + 578097141.

Almost surely, 2^163601451000 is an apocalyptic number.

163601451000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 163601451000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (315242010720).

163601451000 is an abundant number, since it is smaller than the sum of its proper divisors (466882570440).

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

163601451000 is a wasteful number, since it uses less digits than its factorization.

163601451000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396 (or 367 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

Adding to 163601451000 its reverse (154106361), we get a palindrome (163755557361).

The spelling of 163601451000 in words is "one hundred sixty-three billion, six hundred one million, four hundred fifty-one thousand".