655298791601 has 8 divisors (see below), whose sum is σ = 666286521600. Its totient is φ = 644318969040.

The previous prime is 655298791573. The next prime is 655298791621. The reversal of 655298791601 is 106197892556.

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

It is a cyclic number.

It is not a de Polignac number, because 655298791601 - 2¹⁴ = 655298775217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (655298791621) 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, 1809611 + ... + 2141328.

It is an arithmetic number, because the mean of its divisors is an integer number (83285815200).

Almost surely, 2^655298791601 is an apocalyptic number.

655298791601 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

It is an amenable number.

655298791601 is a deficient number, since it is larger than the sum of its proper divisors (10987729999).

655298791601 is a wasteful number, since it uses less digits than its factorization.

655298791601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3953719.

The product of its (nonzero) digits is 8164800, while the sum is 59.

The spelling of 655298791601 in words is "six hundred fifty-five billion, two hundred ninety-eight million, seven hundred ninety-one thousand, six hundred one".