163772069400 has 480 divisors, whose sum is σ = 602733186000. Its totient is φ = 41098337280.

The previous prime is 163772069371. The next prime is 163772069401. The reversal of 163772069400 is 4960277361.

163772069400 is a `hidden beast` number, since 1 + 6 + 37 + 7 + 206 + 9 + 400 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163772069401) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 48322906 + ... + 48326294.

Almost surely, 2^163772069400 is an apocalyptic number.

163772069400 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 163772069400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (301366593000).

163772069400 is an abundant number, since it is smaller than the sum of its proper divisors (438961116600).

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

163772069400 is a wasteful number, since it uses less digits than its factorization.

163772069400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3593 (or 3575 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 45.

The spelling of 163772069400 in words is "one hundred sixty-three billion, seven hundred seventy-two million, sixty-nine thousand, four hundred".