5656501551605 has 4 divisors (see below), whose sum is σ = 6787801861932. Its totient is φ = 4525201241280.

The previous prime is 5656501551599. The next prime is 5656501551611. The reversal of 5656501551605 is 5061551056565.

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

It is an interprime number because it is at equal distance from previous prime (5656501551599) and next prime (5656501551611).

It can be written as a sum of positive squares in 2 ways, for example, as 3868074094564 + 1788427457041 = 1966742^2 + 1337321^2 .

It is not a de Polignac number, because 5656501551605 - 2¹² = 5656501547509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 565650155156 + ... + 565650155165.

It is an arithmetic number, because the mean of its divisors is an integer number (1696950465483).

Almost surely, 2^{5656501551605} is an apocalyptic number.

It is an amenable number.

5656501551605 is a deficient number, since it is larger than the sum of its proper divisors (1131300310327).

5656501551605 is a wasteful number, since it uses less digits than its factorization.

5656501551605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1131300310326.

The product of its (nonzero) digits is 3375000, while the sum is 50.

The spelling of 5656501551605 in words is "five trillion, six hundred fifty-six billion, five hundred one million, five hundred fifty-one thousand, six hundred five".