1400556055542 has 256 divisors, whose sum is σ = 3616773120000. Its totient is φ = 352278872064.

The previous prime is 1400556055529. The next prime is 1400556055553. The reversal of 1400556055542 is 2455506550041.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 1400556055494 and 1400556055503.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 183099334 + ... + 183106982.

It is an arithmetic number, because the mean of its divisors is an integer number (14128020000).

Almost surely, 2^{1400556055542} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1400556055542, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1808386560000).

1400556055542 is an abundant number, since it is smaller than the sum of its proper divisors (2216217064458).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1400556055542 is a wasteful number, since it uses less digits than its factorization.

1400556055542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7983.

The product of its (nonzero) digits is 600000, while the sum is 42.

The spelling of 1400556055542 in words is "one trillion, four hundred billion, five hundred fifty-six million, fifty-five thousand, five hundred forty-two".