64201320246187 has 2 divisors, whose sum is σ = 64201320246188. Its totient is φ = 64201320246186.

The previous prime is 64201320246179. The next prime is 64201320246281. The reversal of 64201320246187 is 78164202310246.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64201320246187 - 2³ = 64201320246179 is a prime.

It is not a weakly prime, because it can be changed into another prime (64201320246157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32100660123093 + 32100660123094.

It is an arithmetic number, because the mean of its divisors is an integer number (32100660123094).

Almost surely, 2^{64201320246187} is an apocalyptic number.

64201320246187 is a deficient number, since it is larger than the sum of its proper divisors (1).

64201320246187 is an equidigital number, since it uses as much as digits as its factorization.

64201320246187 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 774144, while the sum is 46.

The spelling of 64201320246187 in words is "sixty-four trillion, two hundred one billion, three hundred twenty million, two hundred forty-six thousand, one hundred eighty-seven".