2061701715505 has 16 divisors (see below), whose sum is σ = 2484785192400. Its totient is φ = 1642206919680.

The previous prime is 2061701715499. The next prime is 2061701715539. The reversal of 2061701715505 is 5055171071602.

It can be written as a sum of positive squares in 8 ways, for example, as 262135808064 + 1799565907441 = 511992^2 + 1341479^2 .

It is not a de Polignac number, because 2061701715505 - 2³ = 2061701715497 is a prime.

It is a super-2 number, since 2×2061701715505² (a number of 25 digits) contains 22 as substring.

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, 1687765 + ... + 2640445.

It is an arithmetic number, because the mean of its divisors is an integer number (155299074525).

Almost surely, 2^{2061701715505} is an apocalyptic number.

It is an amenable number.

2061701715505 is a deficient number, since it is larger than the sum of its proper divisors (423083476895).

2061701715505 is a wasteful number, since it uses less digits than its factorization.

2061701715505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 954564.

The product of its (nonzero) digits is 73500, while the sum is 40.

The spelling of 2061701715505 in words is "two trillion, sixty-one billion, seven hundred one million, seven hundred fifteen thousand, five hundred five".