890620655201 has 4 divisors (see below), whose sum is σ = 891526679232. Its totient is φ = 889714631172.

The previous prime is 890620655153. The next prime is 890620655257. The reversal of 890620655201 is 102556026098.

890620655201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 890620655201 - 2³⁰ = 889546913377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (890620655101) 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, 453010541 + ... + 453012506.

It is an arithmetic number, because the mean of its divisors is an integer number (222881669808).

Almost surely, 2^890620655201 is an apocalyptic number.

It is an amenable number.

890620655201 is a deficient number, since it is larger than the sum of its proper divisors (906024031).

890620655201 is an equidigital number, since it uses as much as digits as its factorization.

890620655201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 906024030.

The product of its (nonzero) digits is 259200, while the sum is 44.

The spelling of 890620655201 in words is "eight hundred ninety billion, six hundred twenty million, six hundred fifty-five thousand, two hundred one".