1331455247406 has 24 divisors (see below), whose sum is σ = 2891482120800. Its totient is φ = 442793428416.

The previous prime is 1331455247387. The next prime is 1331455247497. The reversal of 1331455247406 is 6047425541331.

1331455247406 is a `hidden beast` number, since 1 + 3 + 3 + 14 + 552 + 47 + 40 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 85407606 + ... + 85423193.

It is an arithmetic number, because the mean of its divisors is an integer number (120478421700).

Almost surely, 2^{1331455247406} is an apocalyptic number.

1331455247406 is an abundant number, since it is smaller than the sum of its proper divisors (1560026873394).

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

1331455247406 is a wasteful number, since it uses less digits than its factorization.

1331455247406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170831240 (or 170831237 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 45.

The spelling of 1331455247406 in words is "one trillion, three hundred thirty-one billion, four hundred fifty-five million, two hundred forty-seven thousand, four hundred six".