66714642960 has 160 divisors (see below), whose sum is σ = 237776781312. Its totient is φ = 15157685760.

The previous prime is 66714642947. The next prime is 66714643003. The reversal of 66714642960 is 6924641766.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 161665 + ... + 399455.

Almost surely, 2^66714642960 is an apocalyptic number.

66714642960 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66714642960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118888390656).

66714642960 is an abundant number, since it is smaller than the sum of its proper divisors (171062138352).

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

66714642960 is a wasteful number, since it uses less digits than its factorization.

66714642960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237981 (or 237975 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 51.

The spelling of 66714642960 in words is "sixty-six billion, seven hundred fourteen million, six hundred forty-two thousand, nine hundred sixty".