140094406656 has 408 divisors, whose sum is σ = 442747352320. Its totient is φ = 44144787456.

The previous prime is 140094406619. The next prime is 140094406663. The reversal of 140094406656 is 656604490041.

It is a happy number.

140094406656 is a `hidden beast` number, since 140 + 0 + 9 + 440 + 6 + 65 + 6 = 666.

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, 302579481 + ... + 302579943.

Almost surely, 2^140094406656 is an apocalyptic number.

140094406656 is a gapful number since it is divisible by the number (16) 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 140094406656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (221373676160).

140094406656 is an abundant number, since it is smaller than the sum of its proper divisors (302652945664).

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

140094406656 is an frugal number, since it uses more digits than its factorization.

140094406656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 529 (or 487 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 45.

Adding to 140094406656 its reverse (656604490041), we get a palindrome (796698896697).

The spelling of 140094406656 in words is "one hundred forty billion, ninety-four million, four hundred six thousand, six hundred fifty-six".