140621430016 has 36 divisors (see below), whose sum is σ = 287539763364. Its totient is φ = 68595814400.

The previous prime is 140621429969. The next prime is 140621430017. The reversal of 140621430016 is 610034126041.

It can be written as a sum of positive squares in 2 ways, for example, as 8346649600 + 132274780416 = 91360^2 + 363696^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140621430017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6688315 + ... + 6709306.

It is an arithmetic number, because the mean of its divisors is an integer number (7987215649).

Almost surely, 2^140621430016 is an apocalyptic number.

140621430016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

140621430016 is an abundant number, since it is smaller than the sum of its proper divisors (146918333348).

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

140621430016 is an equidigital number, since it uses as much as digits as its factorization.

140621430016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13397678 (or 13397664 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

Adding to 140621430016 its reverse (610034126041), we get a palindrome (750655556057).

The spelling of 140621430016 in words is "one hundred forty billion, six hundred twenty-one million, four hundred thirty thousand, sixteen".