66460236311645 has 32 divisors (see below), whose sum is σ = 87372272972160. Its totient is φ = 48129663133440.

The previous prime is 66460236311593. The next prime is 66460236311701. The reversal of 66460236311645 is 54611363206466.

It is not a de Polignac number, because 66460236311645 - 2⁸ = 66460236311389 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11613911 + ... + 16364699.

It is an arithmetic number, because the mean of its divisors is an integer number (2730383530380).

Almost surely, 2^{66460236311645} is an apocalyptic number.

It is an amenable number.

66460236311645 is a deficient number, since it is larger than the sum of its proper divisors (20912036660515).

66460236311645 is a wasteful number, since it uses less digits than its factorization.

66460236311645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4751885.

The product of its (nonzero) digits is 11197440, while the sum is 53.

The spelling of 66460236311645 in words is "sixty-six trillion, four hundred sixty billion, two hundred thirty-six million, three hundred eleven thousand, six hundred forty-five".