140505510255 has 128 divisors (see below), whose sum is σ = 271411015680. Its totient is φ = 61264035840.

The previous prime is 140505510217. The next prime is 140505510269. The reversal of 140505510255 is 552015505041.

It is not a de Polignac number, because 140505510255 - 2⁶ = 140505510191 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 7881562 + ... + 7899368.

It is an arithmetic number, because the mean of its divisors is an integer number (2120398560).

Almost surely, 2^140505510255 is an apocalyptic number.

140505510255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

140505510255 is a deficient number, since it is larger than the sum of its proper divisors (130905505425).

140505510255 is a wasteful number, since it uses less digits than its factorization.

140505510255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17969.

The product of its (nonzero) digits is 25000, while the sum is 33.

The spelling of 140505510255 in words is "one hundred forty billion, five hundred five million, five hundred ten thousand, two hundred fifty-five".