1421345031656 has 32 divisors (see below), whose sum is σ = 3033700862400. Its totient is φ = 617976099840.

The previous prime is 1421345031653. The next prime is 1421345031697. The reversal of 1421345031656 is 6561305431241.

It is not an unprimeable number, because it can be changed into a prime (1421345031653) 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 7 ways as a sum of consecutive naturals, for example, 351120761 + ... + 351124808.

It is an arithmetic number, because the mean of its divisors is an integer number (94803151950).

Almost surely, 2^{1421345031656} is an apocalyptic number.

It is an amenable number.

1421345031656 is an abundant number, since it is smaller than the sum of its proper divisors (1612355830744).

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

1421345031656 is a wasteful number, since it uses less digits than its factorization.

1421345031656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 702245609 (or 702245605 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 41.

The spelling of 1421345031656 in words is "one trillion, four hundred twenty-one billion, three hundred forty-five million, thirty-one thousand, six hundred fifty-six".