2061665698633 has 8 divisors (see below), whose sum is σ = 2151569354688. Its totient is φ = 1971784210704.

The previous prime is 2061665698579. The next prime is 2061665698709. The reversal of 2061665698633 is 3368965661602.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2061665698633 - 2⁹ = 2061665698121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2061665698133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5351835 + ... + 5724112.

It is an arithmetic number, because the mean of its divisors is an integer number (268946169336).

Almost surely, 2^{2061665698633} is an apocalyptic number.

2061665698633 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

2061665698633 is a deficient number, since it is larger than the sum of its proper divisors (89903656055).

2061665698633 is a wasteful number, since it uses less digits than its factorization.

2061665698633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11084063.

The product of its (nonzero) digits is 50388480, while the sum is 61.

The spelling of 2061665698633 in words is "two trillion, sixty-one billion, six hundred sixty-five million, six hundred ninety-eight thousand, six hundred thirty-three".