6501120245 has 16 divisors (see below), whose sum is σ = 7890981120. Its totient is φ = 5141358144.

The previous prime is 6501120217. The next prime is 6501120253. The reversal of 6501120245 is 5420211056.

It is a cyclic number.

It is not a de Polignac number, because 6501120245 - 2¹⁶ = 6501054709 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 227972 + ... + 254898.

It is an arithmetic number, because the mean of its divisors is an integer number (493186320).

Almost surely, 2^6501120245 is an apocalyptic number.

It is an amenable number.

6501120245 is a deficient number, since it is larger than the sum of its proper divisors (1389860875).

6501120245 is a wasteful number, since it uses less digits than its factorization.

6501120245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27484.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 6501120245 is about 80629.5246482329. The cubic root of 6501120245 is about 1866.3627857618.

The spelling of 6501120245 in words is "six billion, five hundred one million, one hundred twenty thousand, two hundred forty-five".