163607351040 has 864 divisors, whose sum is σ = 676471251456. Its totient is φ = 37085921280.

The previous prime is 163607350993. The next prime is 163607351053. The reversal of 163607351040 is 40153706361.

163607351040 is a `hidden beast` number, since 1 + 6 + 3 + 607 + 3 + 5 + 1 + 0 + 40 = 666.

It is a tau number, because it is divible by the number of its divisors (864).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 163607350986 and 163607351004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 354896410 + ... + 354896870.

Almost surely, 2^163607351040 is an apocalyptic number.

163607351040 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 163607351040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (338235625728).

163607351040 is an abundant number, since it is smaller than the sum of its proper divisors (512863900416).

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

163607351040 is an equidigital number, since it uses as much as digits as its factorization.

163607351040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667 (or 641 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The spelling of 163607351040 in words is "one hundred sixty-three billion, six hundred seven million, three hundred fifty-one thousand, forty".