140404455554 has 16 divisors (see below), whose sum is σ = 230301096480. Its totient is φ = 63667887360.

The previous prime is 140404455533. The next prime is 140404455559. The reversal of 140404455554 is 455554404041.

It is a super-2 number, since 2×140404455554² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (140404455559) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7606559 + ... + 7624994.

It is an arithmetic number, because the mean of its divisors is an integer number (14393818530).

Almost surely, 2^140404455554 is an apocalyptic number.

140404455554 is a deficient number, since it is larger than the sum of its proper divisors (89896640926).

140404455554 is a wasteful number, since it uses less digits than its factorization.

140404455554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15231985.

The product of its (nonzero) digits is 640000, while the sum is 41.

Adding to 140404455554 its reverse (455554404041), we get a palindrome (595958859595).

The spelling of 140404455554 in words is "one hundred forty billion, four hundred four million, four hundred fifty-five thousand, five hundred fifty-four".