655561362403 has 16 divisors (see below), whose sum is σ = 663141168000. Its totient is φ = 648031692672.

The previous prime is 655561362353. The next prime is 655561362437. The reversal of 655561362403 is 304263165556.

It is a cyclic number.

It is not a de Polignac number, because 655561362403 - 2³³ = 646971427811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (655561362503) 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, 30354733 + ... + 30376321.

It is an arithmetic number, because the mean of its divisors is an integer number (41446323000).

Almost surely, 2^655561362403 is an apocalyptic number.

655561362403 is a deficient number, since it is larger than the sum of its proper divisors (7579805597).

655561362403 is a wasteful number, since it uses less digits than its factorization.

655561362403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22734.

The product of its (nonzero) digits is 1944000, while the sum is 46.

The spelling of 655561362403 in words is "six hundred fifty-five billion, five hundred sixty-one million, three hundred sixty-two thousand, four hundred three".