66050973548 has 24 divisors (see below), whose sum is σ = 134797908000. Its totient is φ = 28307559504.

The previous prime is 66050973523. The next prime is 66050973563. The reversal of 66050973548 is 84537905066.

It is a super-2 number, since 2×66050973548² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 66050973548.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24069683 + ... + 24072426.

It is an arithmetic number, because the mean of its divisors is an integer number (5616579500).

Almost surely, 2^66050973548 is an apocalyptic number.

It is an amenable number.

66050973548 is an abundant number, since it is smaller than the sum of its proper divisors (68746934452).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66050973548 is a wasteful number, since it uses less digits than its factorization.

66050973548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48142134 (or 48142118 counting only the distinct ones).

The product of its (nonzero) digits is 5443200, while the sum is 53.

The spelling of 66050973548 in words is "sixty-six billion, fifty million, nine hundred seventy-three thousand, five hundred forty-eight".