1400443603655 has 4 divisors (see below), whose sum is σ = 1680532324392. Its totient is φ = 1120354882920.

The previous prime is 1400443603609. The next prime is 1400443603681. The reversal of 1400443603655 is 5563063440041.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1400443603655 - 2¹⁶ = 1400443538119 is a prime.

It is a super-2 number, since 2×1400443603655² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140044360361 + ... + 140044360370.

It is an arithmetic number, because the mean of its divisors is an integer number (420133081098).

Almost surely, 2^{1400443603655} is an apocalyptic number.

1400443603655 is a deficient number, since it is larger than the sum of its proper divisors (280088720737).

1400443603655 is an equidigital number, since it uses as much as digits as its factorization.

1400443603655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280088720736.

The product of its (nonzero) digits is 518400, while the sum is 41.

The spelling of 1400443603655 in words is "one trillion, four hundred billion, four hundred forty-three million, six hundred three thousand, six hundred fifty-five".