161434087800 has 48 divisors (see below), whose sum is σ = 500445674040. Its totient is φ = 43049089920.

The previous prime is 161434087777. The next prime is 161434087847. The reversal of 161434087800 is 8780434161.

161434087800 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 134527807 + ... + 134529006.

Almost surely, 2^161434087800 is an apocalyptic number.

161434087800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

161434087800 is an abundant number, since it is smaller than the sum of its proper divisors (339011586240).

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

161434087800 is a wasteful number, since it uses less digits than its factorization.

161434087800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269056832 (or 269056823 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 42.

The spelling of 161434087800 in words is "one hundred sixty-one billion, four hundred thirty-four million, eighty-seven thousand, eight hundred".