140505104000 has 128 divisors (see below), whose sum is σ = 352426772880. Its totient is φ = 55703961600.

The previous prime is 140505103997. The next prime is 140505104011. The reversal of 140505104000 is 401505041.

It can be written as a sum of positive squares in 8 ways, for example, as 3196319296 + 137308784704 = 56536^2 + 370552^2 .

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1769144 + ... + 1846856.

Almost surely, 2^140505104000 is an apocalyptic number.

140505104000 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 140505104000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (176213386440).

140505104000 is an abundant number, since it is smaller than the sum of its proper divisors (211921668880).

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

140505104000 is an equidigital number, since it uses as much as digits as its factorization.

140505104000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77855 (or 77833 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

Adding to 140505104000 its reverse (401505041), we get a palindrome (140906609041).

The spelling of 140505104000 in words is "one hundred forty billion, five hundred five million, one hundred four thousand".