671331701153011 has 4 divisors (see below), whose sum is σ = 671387473508752. Its totient is φ = 671275928797272.

The previous prime is 671331701152993. The next prime is 671331701153041. The reversal of 671331701153011 is 110351107133176.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 671331701153011 - 2²¹ = 671331699055859 is a prime.

It is a super-2 number, since 2×671331701153011² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (671331701153041) 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, 27886159815 + ... + 27886183888.

It is an arithmetic number, because the mean of its divisors is an integer number (167846868377188).

Almost surely, 2^{671331701153011} is an apocalyptic number.

671331701153011 is a deficient number, since it is larger than the sum of its proper divisors (55772355741).

671331701153011 is a wasteful number, since it uses less digits than its factorization.

671331701153011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55772355740.

The product of its (nonzero) digits is 39690, while the sum is 40.

Adding to 671331701153011 its reverse (110351107133176), we get a palindrome (781682808286187).

The spelling of 671331701153011 in words is "six hundred seventy-one trillion, three hundred thirty-one billion, seven hundred one million, one hundred fifty-three thousand, eleven".