66362045507806 has 8 divisors (see below), whose sum is σ = 99544041609624. Its totient is φ = 33180698304600.

The previous prime is 66362045507789. The next prime is 66362045507819. The reversal of 66362045507806 is 60870554026366.

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

It is a super-2 number, since 2×66362045507806² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 161968900 + ... + 162378103.

It is an arithmetic number, because the mean of its divisors is an integer number (12443005201203).

Almost surely, 2^{66362045507806} is an apocalyptic number.

66362045507806 is a deficient number, since it is larger than the sum of its proper divisors (33181996101818).

66362045507806 is a wasteful number, since it uses less digits than its factorization.

66362045507806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324449306.

The product of its (nonzero) digits is 43545600, while the sum is 58.

The spelling of 66362045507806 in words is "sixty-six trillion, three hundred sixty-two billion, forty-five million, five hundred seven thousand, eight hundred six".