655683892001 has 4 divisors (see below), whose sum is σ = 656027723952. Its totient is φ = 655340060052.

The previous prime is 655683891983. The next prime is 655683892057. The reversal of 655683892001 is 100298386556.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 655683892001 - 2²² = 655679697697 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (655683891001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171913115 + ... + 171916928.

It is an arithmetic number, because the mean of its divisors is an integer number (164006930988).

Almost surely, 2^655683892001 is an apocalyptic number.

It is an amenable number.

655683892001 is a deficient number, since it is larger than the sum of its proper divisors (343831951).

655683892001 is a wasteful number, since it uses less digits than its factorization.

655683892001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343831950.

The product of its (nonzero) digits is 3110400, while the sum is 53.

The spelling of 655683892001 in words is "six hundred fifty-five billion, six hundred eighty-three million, eight hundred ninety-two thousand, one".