2661061701 has 16 divisors (see below), whose sum is σ = 3736117440. Its totient is φ = 1680088320.

The previous prime is 2661061699. The next prime is 2661061703. The reversal of 2661061701 is 1071601662.

It is an interprime number because it is at equal distance from previous prime (2661061699) and next prime (2661061703).

It is not a de Polignac number, because 2661061701 - 2¹ = 2661061699 is a prime.

It is a super-3 number, since 3×2661061701³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2661061703) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 208171 + ... + 220583.

It is an arithmetic number, because the mean of its divisors is an integer number (233507340).

Almost surely, 2^2661061701 is an apocalyptic number.

It is an amenable number.

2661061701 is a deficient number, since it is larger than the sum of its proper divisors (1075055739).

2661061701 is a wasteful number, since it uses less digits than its factorization.

2661061701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16196.

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 2661061701 is about 51585.4795557820. The cubic root of 2661061701 is about 1385.7503006713.

The spelling of 2661061701 in words is "two billion, six hundred sixty-one million, sixty-one thousand, seven hundred one".