210506652045 has 12 divisors (see below), whose sum is σ = 364878196956. Its totient is φ = 112270214400.

The previous prime is 210506652017. The next prime is 210506652047. The reversal of 210506652045 is 540256605012.

210506652045 is a `hidden beast` number, since 21 + 0 + 50 + 66 + 520 + 4 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 33233654601 + 177272997444 = 182301^2 + 421038^2 .

It is not a de Polignac number, because 210506652045 - 2¹⁵ = 210506619277 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210506652047) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2338962756 + ... + 2338962845.

It is an arithmetic number, because the mean of its divisors is an integer number (30406516413).

Almost surely, 2^210506652045 is an apocalyptic number.

It is an amenable number.

210506652045 is a deficient number, since it is larger than the sum of its proper divisors (154371544911).

210506652045 is a wasteful number, since it uses less digits than its factorization.

210506652045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4677925612 (or 4677925609 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The spelling of 210506652045 in words is "two hundred ten billion, five hundred six million, six hundred fifty-two thousand, forty-five".