161847454800 has 120 divisors (see below), whose sum is σ = 527238888480. Its totient is φ = 42427788800.

The previous prime is 161847454781. The next prime is 161847454829. The reversal of 161847454800 is 8454748161.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 161847454800.

It is a congruent number.

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, 1072191 + ... + 1213790.

It is an arithmetic number, because the mean of its divisors is an integer number (4393657404).

Almost surely, 2^161847454800 is an apocalyptic number.

161847454800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

161847454800 is an abundant number, since it is smaller than the sum of its proper divisors (365391433680).

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

161847454800 is a wasteful number, since it uses less digits than its factorization.

161847454800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2286061 (or 2286050 counting only the distinct ones).

The product of its (nonzero) digits is 860160, while the sum is 48.

The spelling of 161847454800 in words is "one hundred sixty-one billion, eight hundred forty-seven million, four hundred fifty-four thousand, eight hundred".