2061665502243 has 8 divisors (see below), whose sum is σ = 2749016580288. Its totient is φ = 1374379046184.

The previous prime is 2061665502241. The next prime is 2061665502263. The reversal of 2061665502243 is 3422055661602.

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

It is not a de Polignac number, because 2061665502243 - 2¹ = 2061665502241 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2061665502195 and 2061665502204.

It is not an unprimeable number, because it can be changed into a prime (2061665502241) 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, 16081005 + ... + 16208702.

It is an arithmetic number, because the mean of its divisors is an integer number (343627072536).

Almost surely, 2^{2061665502243} is an apocalyptic number.

2061665502243 is a deficient number, since it is larger than the sum of its proper divisors (687351078045).

2061665502243 is a wasteful number, since it uses less digits than its factorization.

2061665502243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32310993.

The product of its (nonzero) digits is 518400, while the sum is 42.

The spelling of 2061665502243 in words is "two trillion, sixty-one billion, six hundred sixty-five million, five hundred two thousand, two hundred forty-three".