1406141631555 has 24 divisors (see below), whose sum is σ = 2306038857456. Its totient is φ = 731650917120.

The previous prime is 1406141631551. The next prime is 1406141631641. The reversal of 1406141631555 is 5551361416041.

It is a happy number.

It is not a de Polignac number, because 1406141631555 - 2² = 1406141631551 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1406141631551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27857824 + ... + 27908253.

It is an arithmetic number, because the mean of its divisors is an integer number (96084952394).

Almost surely, 2^{1406141631555} is an apocalyptic number.

1406141631555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1406141631555 is a deficient number, since it is larger than the sum of its proper divisors (899897225901).

1406141631555 is an equidigital number, since it uses as much as digits as its factorization.

1406141631555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55766167 (or 55766126 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 42.

The spelling of 1406141631555 in words is "one trillion, four hundred six billion, one hundred forty-one million, six hundred thirty-one thousand, five hundred fifty-five".