1401560425566 has 24 divisors (see below), whose sum is σ = 3470530577904. Its totient is φ = 400445835840.

The previous prime is 1401560425549. The next prime is 1401560425567. The reversal of 1401560425566 is 6655240651041.

1401560425566 is a `hidden beast` number, since 1 + 4 + 0 + 1 + 5 + 60 + 4 + 25 + 566 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1401560425567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5561747595 + ... + 5561747846.

It is an arithmetic number, because the mean of its divisors is an integer number (144605440746).

Almost surely, 2^{1401560425566} is an apocalyptic number.

1401560425566 is an abundant number, since it is smaller than the sum of its proper divisors (2068970152338).

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

1401560425566 is a wasteful number, since it uses less digits than its factorization.

1401560425566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11123495456 (or 11123495453 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 45.

The spelling of 1401560425566 in words is "one trillion, four hundred one billion, five hundred sixty million, four hundred twenty-five thousand, five hundred sixty-six".