70205110661 has 8 divisors (see below), whose sum is σ = 80446115520. Its totient is φ = 60017031648.

The previous prime is 70205110643. The next prime is 70205110697. The reversal of 70205110661 is 16601150207.

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

It is not a de Polignac number, because 70205110661 - 2¹⁴ = 70205094277 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70205110621) 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, 13228616 + ... + 13233921.

It is an arithmetic number, because the mean of its divisors is an integer number (10055764440).

Almost surely, 2^70205110661 is an apocalyptic number.

It is an amenable number.

70205110661 is a deficient number, since it is larger than the sum of its proper divisors (10241004859).

70205110661 is a wasteful number, since it uses less digits than its factorization.

70205110661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26462923.

The product of its (nonzero) digits is 2520, while the sum is 29.

Adding to 70205110661 its reverse (16601150207), we get a palindrome (86806260868).

The spelling of 70205110661 in words is "seventy billion, two hundred five million, one hundred ten thousand, six hundred sixty-one".