140515421000000 has 392 divisors, whose sum is σ = 369941502188160. Its totient is φ = 52770995200000.

The previous prime is 140515420999991. The next prime is 140515421000011. The reversal of 140515421000000 is 124515041.

It is a self number, because there is not a number n which added to its sum of digits gives 140515421000000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 7122990137 + ... + 7123009863.

Almost surely, 2^{140515421000000} is an apocalyptic number.

140515421000000 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 140515421000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (184970751094080).

140515421000000 is an abundant number, since it is smaller than the sum of its proper divisors (229426081188160).

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

140515421000000 is an frugal number, since it uses more digits than its factorization.

140515421000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20205 (or 20170 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 23.

Adding to 140515421000000 its reverse (124515041), we get a palindrome (140515545515041).

The spelling of 140515421000000 in words is "one hundred forty trillion, five hundred fifteen billion, four hundred twenty-one million", and thus it is an aban number.