1400243330655 has 36 divisors (see below), whose sum is σ = 2628149034888. Its totient is φ = 689350559040.

The previous prime is 1400243330557. The next prime is 1400243330671. The reversal of 1400243330655 is 5560333420041.

1400243330655 is a `hidden beast` number, since 1 + 400 + 243 + 3 + 3 + 0 + 6 + 5 + 5 = 666.

It is not a de Polignac number, because 1400243330655 - 2⁸ = 1400243330399 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 92053101 + ... + 92068310.

It is an arithmetic number, because the mean of its divisors is an integer number (73004139858).

Almost surely, 2^{1400243330655} is an apocalyptic number.

1400243330655 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1400243330655 is a deficient number, since it is larger than the sum of its proper divisors (1227905704233).

1400243330655 is a wasteful number, since it uses less digits than its factorization.

1400243330655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184121448 (or 184121432 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 36.

Adding to 1400243330655 its reverse (5560333420041), we get a palindrome (6960576750696).

The spelling of 1400243330655 in words is "one trillion, four hundred billion, two hundred forty-three million, three hundred thirty thousand, six hundred fifty-five".