1715640056506 has 4 divisors (see below), whose sum is σ = 2573460084762. Its totient is φ = 857820028252.

The previous prime is 1715640056503. The next prime is 1715640056527. The reversal of 1715640056506 is 6056500465171.

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

It can be written as a sum of positive squares in only one way, i.e., 1456498991025 + 259141065481 = 1206855^2 + 509059^2 .

It is not an unprimeable number, because it can be changed into a prime (1715640056503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 428910014125 + ... + 428910014128.

Almost surely, 2^{1715640056506} is an apocalyptic number.

1715640056506 is a deficient number, since it is larger than the sum of its proper divisors (857820028256).

1715640056506 is an equidigital number, since it uses as much as digits as its factorization.

1715640056506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 857820028255.

The product of its (nonzero) digits is 756000, while the sum is 46.

The spelling of 1715640056506 in words is "one trillion, seven hundred fifteen billion, six hundred forty million, fifty-six thousand, five hundred six".