66051510600 has 48 divisors (see below), whose sum is σ = 204759684720. Its totient is φ = 17613736000.

The previous prime is 66051510599. The next prime is 66051510617. The reversal of 66051510600 is 601515066.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55042326 + ... + 55043525.

It is an arithmetic number, because the mean of its divisors is an integer number (4265826765).

Almost surely, 2^66051510600 is an apocalyptic number.

66051510600 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

66051510600 is an abundant number, since it is smaller than the sum of its proper divisors (138708174120).

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

66051510600 is a wasteful number, since it uses less digits than its factorization.

66051510600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110085870 (or 110085861 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 30.

The spelling of 66051510600 in words is "sixty-six billion, fifty-one million, five hundred ten thousand, six hundred".