66704101000 has 32 divisors (see below), whose sum is σ = 156087598680. Its totient is φ = 26681640000.

The previous prime is 66704100973. The next prime is 66704101001. The reversal of 66704101000 is 10140766.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 22626778084 + 44077322916 = 150422^2 + 209946^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (66704101001) 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, 33351051 + ... + 33353050.

Almost surely, 2^66704101000 is an apocalyptic number.

It is an amenable number.

66704101000 is an abundant number, since it is smaller than the sum of its proper divisors (89383497680).

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

66704101000 is a wasteful number, since it uses less digits than its factorization.

66704101000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66704122 (or 66704108 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 25.

Adding to 66704101000 its reverse (10140766), we get a palindrome (66714241766).

The spelling of 66704101000 in words is "sixty-six billion, seven hundred four million, one hundred one thousand".