6505706157 has 8 divisors (see below), whose sum is σ = 8674650720. Its totient is φ = 4336949520.

The previous prime is 6505706143. The next prime is 6505706161. The reversal of 6505706157 is 7516075056.

6505706157 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 6505706157 - 2¹⁶ = 6505640621 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6505706107) 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, 95719 + ... + 148907.

It is an arithmetic number, because the mean of its divisors is an integer number (1084331340).

Almost surely, 2^6505706157 is an apocalyptic number.

It is an amenable number.

6505706157 is a deficient number, since it is larger than the sum of its proper divisors (2168944563).

6505706157 is a wasteful number, since it uses less digits than its factorization.

6505706157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93963.

The product of its (nonzero) digits is 220500, while the sum is 42.

The square root of 6505706157 is about 80657.9578033067. The cubic root of 6505706157 is about 1866.8015288015.

The spelling of 6505706157 in words is "six billion, five hundred five million, seven hundred six thousand, one hundred fifty-seven".