67020660881 has 8 divisors (see below), whose sum is σ = 68972236224. Its totient is φ = 65076464880.

The previous prime is 67020660869. The next prime is 67020660887. The reversal of 67020660881 is 18806602076.

67020660881 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 67020660881 - 2¹⁸ = 67020398737 is a prime.

It is a super-2 number, since 2×67020660881² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67020660887) 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, 1826405 + ... + 1862738.

It is an arithmetic number, because the mean of its divisors is an integer number (8621529528).

Almost surely, 2^67020660881 is an apocalyptic number.

It is an amenable number.

67020660881 is a deficient number, since it is larger than the sum of its proper divisors (1951575343).

67020660881 is a wasteful number, since it uses less digits than its factorization.

67020660881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3689671.

The product of its (nonzero) digits is 193536, while the sum is 44.

The spelling of 67020660881 in words is "sixty-seven billion, twenty million, six hundred sixty thousand, eight hundred eighty-one".