168100779481 has 8 divisors (see below), whose sum is σ = 168254895744. Its totient is φ = 167946712080.

The previous prime is 168100779461. The next prime is 168100779491. The reversal of 168100779481 is 184977001861.

It is a happy number.

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 168100779481 - 2¹⁷ = 168100648409 is a prime.

It is a super-2 number, since 2×168100779481² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (168100779461) 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, 11376160 + ... + 11390926.

It is an arithmetic number, because the mean of its divisors is an integer number (21031861968).

Almost surely, 2^168100779481 is an apocalyptic number.

It is an amenable number.

168100779481 is a deficient number, since it is larger than the sum of its proper divisors (154116263).

168100779481 is a wasteful number, since it uses less digits than its factorization.

168100779481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24431.

The product of its (nonzero) digits is 677376, while the sum is 52.

The spelling of 168100779481 in words is "one hundred sixty-eight billion, one hundred million, seven hundred seventy-nine thousand, four hundred eighty-one".