66545162546 has 8 divisors (see below), whose sum is σ = 99818943024. Its totient is φ = 33272181540.

The previous prime is 66545162543. The next prime is 66545162569. The reversal of 66545162546 is 64526154566.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×66545162546² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 66545162494 and 66545162503.

It is not an unprimeable number, because it can be changed into a prime (66545162543) 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, 95561 + ... + 377123.

It is an arithmetic number, because the mean of its divisors is an integer number (12477367878).

Almost surely, 2^66545162546 is an apocalyptic number.

66545162546 is a deficient number, since it is larger than the sum of its proper divisors (33273780478).

66545162546 is a wasteful number, since it uses less digits than its factorization.

66545162546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399736.

The product of its digits is 5184000, while the sum is 50.

The spelling of 66545162546 in words is "sixty-six billion, five hundred forty-five million, one hundred sixty-two thousand, five hundred forty-six".