2661350335653 has 16 divisors (see below), whose sum is σ = 3635216752640. Its totient is φ = 1730954809584.

The previous prime is 2661350335639. The next prime is 2661350335661. The reversal of 2661350335653 is 3565330531662.

It is not a de Polignac number, because 2661350335653 - 2⁵ = 2661350335621 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2661350335753) 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, 11897701 + ... + 12119322.

It is an arithmetic number, because the mean of its divisors is an integer number (227201047040).

Almost surely, 2^{2661350335653} is an apocalyptic number.

It is an amenable number.

2661350335653 is a deficient number, since it is larger than the sum of its proper divisors (973866416987).

2661350335653 is a wasteful number, since it uses less digits than its factorization.

2661350335653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24017928.

The product of its (nonzero) digits is 4374000, while the sum is 48.

The spelling of 2661350335653 in words is "two trillion, six hundred sixty-one billion, three hundred fifty million, three hundred thirty-five thousand, six hundred fifty-three".