210655553151 has 4 divisors (see below), whose sum is σ = 280874070872. Its totient is φ = 140437035432.

The previous prime is 210655553137. The next prime is 210655553177. The reversal of 210655553151 is 151355556012.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 210655553151 - 2¹⁹ = 210655028863 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210655555151) 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, 35109258856 + ... + 35109258861.

It is an arithmetic number, because the mean of its divisors is an integer number (70218517718).

Almost surely, 2^210655553151 is an apocalyptic number.

210655553151 is a deficient number, since it is larger than the sum of its proper divisors (70218517721).

210655553151 is an equidigital number, since it uses as much as digits as its factorization.

210655553151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70218517720.

The product of its (nonzero) digits is 112500, while the sum is 39.

The spelling of 210655553151 in words is "two hundred ten billion, six hundred fifty-five million, five hundred fifty-three thousand, one hundred fifty-one".