42654706661 has 8 divisors (see below), whose sum is σ = 48753495744. Its totient is φ = 36557232480.

The previous prime is 42654706657. The next prime is 42654706687. The reversal of 42654706661 is 16660745624.

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 42654706661 - 2² = 42654706657 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42654706631) 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, 258200 + ... + 389841.

It is an arithmetic number, because the mean of its divisors is an integer number (6094186968).

Almost surely, 2^42654706661 is an apocalyptic number.

It is an amenable number.

42654706661 is a deficient number, since it is larger than the sum of its proper divisors (6098789083).

42654706661 is an equidigital number, since it uses as much as digits as its factorization.

42654706661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 657451.

The product of its (nonzero) digits is 1451520, while the sum is 47.

The spelling of 42654706661 in words is "forty-two billion, six hundred fifty-four million, seven hundred six thousand, six hundred sixty-one".