206025072051 has 8 divisors (see below), whose sum is σ = 274702327504. Its totient is φ = 137348932320.

The previous prime is 206025072049. The next prime is 206025072061. The reversal of 206025072051 is 150270520602.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 206025072051 - 2¹ = 206025072049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (206025072031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 362961 + ... + 737421.

It is an arithmetic number, because the mean of its divisors is an integer number (34337790938).

Almost surely, 2^206025072051 is an apocalyptic number.

206025072051 is a deficient number, since it is larger than the sum of its proper divisors (68677255453).

206025072051 is a wasteful number, since it uses less digits than its factorization.

206025072051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 557861.

The product of its (nonzero) digits is 8400, while the sum is 30.

Adding to 206025072051 its reverse (150270520602), we get a palindrome (356295592653).

The spelling of 206025072051 in words is "two hundred six billion, twenty-five million, seventy-two thousand, fifty-one".