655355620011 has 8 divisors (see below), whose sum is σ = 875404949824. Its totient is φ = 436105018440.

The previous prime is 655355619977. The next prime is 655355620061. The reversal of 655355620011 is 110026553556.

655355620011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 655355620011 - 2²⁶ = 655288511147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (655355620061) 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, 199680145 + ... + 199683426.

It is an arithmetic number, because the mean of its divisors is an integer number (109425618728).

Almost surely, 2^655355620011 is an apocalyptic number.

655355620011 is a deficient number, since it is larger than the sum of its proper divisors (220049329813).

655355620011 is a wasteful number, since it uses less digits than its factorization.

655355620011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399364121.

The product of its (nonzero) digits is 135000, while the sum is 39.

The spelling of 655355620011 in words is "six hundred fifty-five billion, three hundred fifty-five million, six hundred twenty thousand, eleven".