6420660463401 has 8 divisors (see below), whose sum is σ = 8569120160640. Its totient is φ = 4276320537552.

The previous prime is 6420660463337. The next prime is 6420660463411. The reversal of 6420660463401 is 1043640660246.

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

It is not a de Polignac number, because 6420660463401 - 2⁶ = 6420660463337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6420660463411) 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, 1029939210 + ... + 1029945443.

It is an arithmetic number, because the mean of its divisors is an integer number (1071140020080).

Almost surely, 2^{6420660463401} is an apocalyptic number.

It is an amenable number.

6420660463401 is a deficient number, since it is larger than the sum of its proper divisors (2148459697239).

6420660463401 is a wasteful number, since it uses less digits than its factorization.

6420660463401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2059885695.

The product of its (nonzero) digits is 497664, while the sum is 42.

The spelling of 6420660463401 in words is "six trillion, four hundred twenty billion, six hundred sixty million, four hundred sixty-three thousand, four hundred one".