642651560411 has 8 divisors (see below), whose sum is σ = 746907383040. Its totient is φ = 541507852008.

The previous prime is 642651560387. The next prime is 642651560417. The reversal of 642651560411 is 114065156246.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 642651560411 - 2¹⁴ = 642651544027 is a prime.

It is not an unprimeable number, because it can be changed into a prime (642651560417) 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, 778028111 + ... + 778028936.

It is an arithmetic number, because the mean of its divisors is an integer number (93363422880).

Almost surely, 2^642651560411 is an apocalyptic number.

642651560411 is a deficient number, since it is larger than the sum of its proper divisors (104255822629).

642651560411 is a wasteful number, since it uses less digits than its factorization.

642651560411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1556057113.

The product of its (nonzero) digits is 172800, while the sum is 41.

The spelling of 642651560411 in words is "six hundred forty-two billion, six hundred fifty-one million, five hundred sixty thousand, four hundred eleven".