660555024513001 has 4 divisors (see below), whose sum is σ = 660555081862272. Its totient is φ = 660554967163732.

The previous prime is 660555024512989. The next prime is 660555024513047. The reversal of 660555024513001 is 100315420555066.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-660555024513001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (660555024513701) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4735681 + ... + 36654286.

It is an arithmetic number, because the mean of its divisors is an integer number (165138770465568).

Almost surely, 2^{660555024513001} is an apocalyptic number.

It is an amenable number.

660555024513001 is a deficient number, since it is larger than the sum of its proper divisors (57349271).

660555024513001 is a wasteful number, since it uses less digits than its factorization.

660555024513001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57349270.

The product of its (nonzero) digits is 540000, while the sum is 43.

The spelling of 660555024513001 in words is "six hundred sixty trillion, five hundred fifty-five billion, twenty-four million, five hundred thirteen thousand, one".