665151744006 has 20 divisors (see below), whose sum is σ = 1490432611932. Its totient is φ = 221717247948.

The previous prime is 665151743981. The next prime is 665151744079. The reversal of 665151744006 is 600447151566.

665151744006 is a `hidden beast` number, since 6 + 65 + 15 + 174 + 400 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2052937320 + ... + 2052937643.

Almost surely, 2^665151744006 is an apocalyptic number.

665151744006 is an abundant number, since it is smaller than the sum of its proper divisors (825280867926).

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

665151744006 is a wasteful number, since it uses less digits than its factorization.

665151744006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4105874977 (or 4105874968 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 45.

The spelling of 665151744006 in words is "six hundred sixty-five billion, one hundred fifty-one million, seven hundred forty-four thousand, six".