6545203651 has 8 divisors (see below), whose sum is σ = 7490306304. Its totient is φ = 5602619400.

The previous prime is 6545203573. The next prime is 6545203661. The reversal of 6545203651 is 1563025456.

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

It is not a de Polignac number, because 6545203651 - 2⁷ = 6545203523 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 6545203651.

It is not an unprimeable number, because it can be changed into a prime (6545203661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 624025 + ... + 634426.

It is an arithmetic number, because the mean of its divisors is an integer number (936288288).

Almost surely, 2^6545203651 is an apocalyptic number.

6545203651 is a deficient number, since it is larger than the sum of its proper divisors (945102653).

6545203651 is a wasteful number, since it uses less digits than its factorization.

6545203651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1259201.

The product of its (nonzero) digits is 108000, while the sum is 37.

The square root of 6545203651 is about 80902.4329115015. The cubic root of 6545203651 is about 1870.5718223237.

The spelling of 6545203651 in words is "six billion, five hundred forty-five million, two hundred three thousand, six hundred fifty-one".