140445308640 has 384 divisors, whose sum is σ = 553734558720. Its totient is φ = 29129637888.

The previous prime is 140445308629. The next prime is 140445308657. The reversal of 140445308640 is 46803544041.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2549872 + ... + 2604368.

It is an arithmetic number, because the mean of its divisors is an integer number (1442017080).

Almost surely, 2^140445308640 is an apocalyptic number.

140445308640 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 140445308640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (276867279360).

140445308640 is an abundant number, since it is smaller than the sum of its proper divisors (413289250080).

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

140445308640 is a wasteful number, since it uses less digits than its factorization.

140445308640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54594 (or 54586 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 39.

The spelling of 140445308640 in words is "one hundred forty billion, four hundred forty-five million, three hundred eight thousand, six hundred forty".