147666516481 has 8 divisors (see below), whose sum is σ = 161101151424. Its totient is φ = 134233615920.

The previous prime is 147666516479. The next prime is 147666516511. The reversal of 147666516481 is 184615666741.

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 147666516481 - 2¹ = 147666516479 is a prime.

It is a super-2 number, since 2×147666516481² (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 (147666516401) 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, 252270 + ... + 599143.

It is an arithmetic number, because the mean of its divisors is an integer number (20137643928).

Almost surely, 2^147666516481 is an apocalyptic number.

147666516481 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

147666516481 is a deficient number, since it is larger than the sum of its proper divisors (13434634943).

147666516481 is a wasteful number, since it uses less digits than its factorization.

147666516481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 867191.

The product of its digits is 5806080, while the sum is 55.

The spelling of 147666516481 in words is "one hundred forty-seven billion, six hundred sixty-six million, five hundred sixteen thousand, four hundred eighty-one".