1553431590456 has 32 divisors (see below), whose sum is σ = 3887018883600. Its totient is φ = 517351875840.

The previous prime is 1553431590439. The next prime is 1553431590463. The reversal of 1553431590456 is 6540951343551.

It is a junction number, because it is equal to n+sod(n) for n = 1553431590399 and 1553431590408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28638235 + ... + 28692426.

Almost surely, 2^{1553431590456} is an apocalyptic number.

It is an amenable number.

1553431590456 is an abundant number, since it is smaller than the sum of its proper divisors (2333587293144).

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

1553431590456 is a wasteful number, since it uses less digits than its factorization.

1553431590456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57331799 (or 57331795 counting only the distinct ones).

The product of its (nonzero) digits is 4860000, while the sum is 51.

The spelling of 1553431590456 in words is "one trillion, five hundred fifty-three billion, four hundred thirty-one million, five hundred ninety thousand, four hundred fifty-six".