2661434661301 has 16 divisors (see below), whose sum is σ = 2911722016896. Its totient is φ = 2417881202496.

The previous prime is 2661434661289. The next prime is 2661434661359. The reversal of 2661434661301 is 1031664341662.

It is a cyclic number.

It is not a de Polignac number, because 2661434661301 - 2¹⁹ = 2661434137013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2661434661371) 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, 4405530 + ... + 4973083.

It is an arithmetic number, because the mean of its divisors is an integer number (181982626056).

Almost surely, 2^{2661434661301} is an apocalyptic number.

It is an amenable number.

2661434661301 is a deficient number, since it is larger than the sum of its proper divisors (250287355595).

2661434661301 is a wasteful number, since it uses less digits than its factorization.

2661434661301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9378972.

The product of its (nonzero) digits is 373248, while the sum is 43.

The spelling of 2661434661301 in words is "two trillion, six hundred sixty-one billion, four hundred thirty-four million, six hundred sixty-one thousand, three hundred one".