655556661441401 has 8 divisors (see below), whose sum is σ = 689656335825600. Its totient is φ = 622223271874960.

The previous prime is 655556661441359. The next prime is 655556661441421. The reversal of 655556661441401 is 104144166655556.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 655556661441401 - 2¹⁸ = 655556661179257 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (59).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (655556661441421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 191571202685 + ... + 191571206106.

It is an arithmetic number, because the mean of its divisors is an integer number (86207041978200).

Almost surely, 2^{655556661441401} is an apocalyptic number.

It is an amenable number.

655556661441401 is a deficient number, since it is larger than the sum of its proper divisors (34099674384199).

655556661441401 is a wasteful number, since it uses less digits than its factorization.

655556661441401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383142408879.

The product of its (nonzero) digits is 51840000, while the sum is 59.

The spelling of 655556661441401 in words is "six hundred fifty-five trillion, five hundred fifty-six billion, six hundred sixty-one million, four hundred forty-one thousand, four hundred one".