140442771456 has 560 divisors, whose sum is σ = 460474490784. Its totient is φ = 42568187904.

The previous prime is 140442771353. The next prime is 140442771527. The reversal of 140442771456 is 654177244041.

140442771456 is a `hidden beast` number, since 140 + 442 + 7 + 7 + 14 + 56 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2096160735 + ... + 2096160801.

Almost surely, 2^140442771456 is an apocalyptic number.

140442771456 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 140442771456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (230237245392).

140442771456 is an abundant number, since it is smaller than the sum of its proper divisors (320031719328).

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

140442771456 is an frugal number, since it uses more digits than its factorization.

140442771456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133 (or 85 counting only the distinct ones).

The product of its (nonzero) digits is 752640, while the sum is 45.

The spelling of 140442771456 in words is "one hundred forty billion, four hundred forty-two million, seven hundred seventy-one thousand, four hundred fifty-six".