140564436255 has 24 divisors (see below), whose sum is σ = 243672764400. Its totient is φ = 74959163520.

The previous prime is 140564436247. The next prime is 140564436323. The reversal of 140564436255 is 552634465041.

140564436255 is a `hidden beast` number, since 1 + 4 + 0 + 564 + 4 + 36 + 2 + 55 = 666.

It is not a de Polignac number, because 140564436255 - 2³ = 140564436247 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 140564436255.

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, 232171 + ... + 578819.

It is an arithmetic number, because the mean of its divisors is an integer number (10153031850).

Almost surely, 2^140564436255 is an apocalyptic number.

140564436255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

140564436255 is a deficient number, since it is larger than the sum of its proper divisors (103108328145).

140564436255 is a wasteful number, since it uses less digits than its factorization.

140564436255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355671 (or 355668 counting only the distinct ones).

The product of its (nonzero) digits is 1728000, while the sum is 45.

The spelling of 140564436255 in words is "one hundred forty billion, five hundred sixty-four million, four hundred thirty-six thousand, two hundred fifty-five".