67620483661 has 4 divisors (see below), whose sum is σ = 67621932000. Its totient is φ = 67619035324.

The previous prime is 67620483647. The next prime is 67620483703. The reversal of 67620483661 is 16638402676.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 67620483661 - 2⁵ = 67620483629 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67620483061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 651721 + ... + 748318.

It is an arithmetic number, because the mean of its divisors is an integer number (16905483000).

Almost surely, 2^67620483661 is an apocalyptic number.

It is an amenable number.

67620483661 is a deficient number, since it is larger than the sum of its proper divisors (1448339).

67620483661 is a wasteful number, since it uses less digits than its factorization.

67620483661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1448338.

The product of its (nonzero) digits is 1741824, while the sum is 49.

The spelling of 67620483661 in words is "sixty-seven billion, six hundred twenty million, four hundred eighty-three thousand, six hundred sixty-one".