140403655455 has 32 divisors (see below), whose sum is σ = 256766619648. Its totient is φ = 64177401600.

The previous prime is 140403655429. The next prime is 140403655489. The reversal of 140403655455 is 554556304041.

It is not a de Polignac number, because 140403655455 - 2⁶ = 140403655391 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 941835 + ... + 1080675.

It is an arithmetic number, because the mean of its divisors is an integer number (8023956864).

Almost surely, 2^140403655455 is an apocalyptic number.

140403655455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

140403655455 is a deficient number, since it is larger than the sum of its proper divisors (116362964193).

140403655455 is a wasteful number, since it uses less digits than its factorization.

140403655455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148487.

The product of its (nonzero) digits is 720000, while the sum is 42.

Adding to 140403655455 its reverse (554556304041), we get a palindrome (694959959496).

The spelling of 140403655455 in words is "one hundred forty billion, four hundred three million, six hundred fifty-five thousand, four hundred fifty-five".