210045511145550 has 48 divisors (see below), whose sum is σ = 520914447881712. Its totient is φ = 56011966387200.

The previous prime is 210045511145489. The next prime is 210045511145551. The reversal of 210045511145550 is 55541115540012.

It is a junction number, because it is equal to n+sod(n) for n = 210045511145499 and 210045511145508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210045511145551) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 52083262 + ... + 55971038.

It is an arithmetic number, because the mean of its divisors is an integer number (10852384330869).

Almost surely, 2^{210045511145550} is an apocalyptic number.

210045511145550 is an abundant number, since it is smaller than the sum of its proper divisors (310868936736162).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

210045511145550 is a wasteful number, since it uses less digits than its factorization.

210045511145550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4247973 (or 4247968 counting only the distinct ones).

The product of its (nonzero) digits is 100000, while the sum is 39.

Adding to 210045511145550 its reverse (55541115540012), we get a palindrome (265586626685562).

The spelling of 210045511145550 in words is "two hundred ten trillion, forty-five billion, five hundred eleven million, one hundred forty-five thousand, five hundred fifty".