655136056401 has 8 divisors (see below), whose sum is σ = 873519947520. Its totient is φ = 436754768112.

The previous prime is 655136056391. The next prime is 655136056423. The reversal of 655136056401 is 104650631556.

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

It is not a de Polignac number, because 655136056401 - 2¹³ = 655136048209 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (655136556401) 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, 41920 + ... + 1145438.

It is an arithmetic number, because the mean of its divisors is an integer number (109189993440).

Almost surely, 2^655136056401 is an apocalyptic number.

It is an amenable number.

655136056401 is a deficient number, since it is larger than the sum of its proper divisors (218383891119).

655136056401 is a wasteful number, since it uses less digits than its factorization.

655136056401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1301415.

The product of its (nonzero) digits is 324000, while the sum is 42.

Adding to 655136056401 its reverse (104650631556), we get a palindrome (759786687957).

The spelling of 655136056401 in words is "six hundred fifty-five billion, one hundred thirty-six million, fifty-six thousand, four hundred one".