667100771101 has 4 divisors (see below), whose sum is σ = 668376298912. Its totient is φ = 665825243292.

The previous prime is 667100771063. The next prime is 667100771107. The reversal of 667100771101 is 101177001766.

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 667100771101 - 2²³ = 667092382493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667100771107) 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, 637763121 + ... + 637764166.

It is an arithmetic number, because the mean of its divisors is an integer number (167094074728).

Almost surely, 2^667100771101 is an apocalyptic number.

It is an amenable number.

667100771101 is a deficient number, since it is larger than the sum of its proper divisors (1275527811).

667100771101 is a wasteful number, since it uses less digits than its factorization.

667100771101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1275527810.

The product of its (nonzero) digits is 12348, while the sum is 37.

Adding to 667100771101 its reverse (101177001766), we get a palindrome (768277772867).

The spelling of 667100771101 in words is "six hundred sixty-seven billion, one hundred million, seven hundred seventy-one thousand, one hundred one".