1403225613656 has 64 divisors (see below), whose sum is σ = 2723984640000. Its totient is φ = 676966625280.

The previous prime is 1403225613653. The next prime is 1403225613677. The reversal of 1403225613656 is 6563165223041.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1403225613653) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 163180445 + ... + 163189043.

It is an arithmetic number, because the mean of its divisors is an integer number (42562260000).

Almost surely, 2^{1403225613656} is an apocalyptic number.

It is an amenable number.

1403225613656 is a deficient number, since it is larger than the sum of its proper divisors (1320759026344).

1403225613656 is a wasteful number, since it uses less digits than its factorization.

1403225613656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10512 (or 10508 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 44.

The spelling of 1403225613656 in words is "one trillion, four hundred three billion, two hundred twenty-five million, six hundred thirteen thousand, six hundred fifty-six".