1606210533451 has 4 divisors (see below), whose sum is σ = 1661597103600. Its totient is φ = 1550823963304.

The previous prime is 1606210533449. The next prime is 1606210533457. The reversal of 1606210533451 is 1543350126061.

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

It is a cyclic number.

It is not a de Polignac number, because 1606210533451 - 2¹ = 1606210533449 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1606210533451.

It is not an unprimeable number, because it can be changed into a prime (1606210533457) 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, 27693285031 + ... + 27693285088.

It is an arithmetic number, because the mean of its divisors is an integer number (415399275900).

Almost surely, 2^{1606210533451} is an apocalyptic number.

1606210533451 is a deficient number, since it is larger than the sum of its proper divisors (55386570149).

1606210533451 is an equidigital number, since it uses as much as digits as its factorization.

1606210533451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55386570148.

The product of its (nonzero) digits is 64800, while the sum is 37.

The spelling of 1606210533451 in words is "one trillion, six hundred six billion, two hundred ten million, five hundred thirty-three thousand, four hundred fifty-one".