66430166853802 has 8 divisors (see below), whose sum is σ = 99650625235200. Its totient is φ = 33213291775404.

The previous prime is 66430166853737. The next prime is 66430166853803. The reversal of 66430166853802 is 20835866103466.

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

It is a super-2 number, since 2×66430166853802² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (66430166853803) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 895779402 + ... + 895853557.

It is an arithmetic number, because the mean of its divisors is an integer number (12456328154400).

Almost surely, 2^{66430166853802} is an apocalyptic number.

66430166853802 is a deficient number, since it is larger than the sum of its proper divisors (33220458381398).

66430166853802 is a wasteful number, since it uses less digits than its factorization.

66430166853802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1791651500.

The product of its (nonzero) digits is 29859840, while the sum is 58.

The spelling of 66430166853802 in words is "sixty-six trillion, four hundred thirty billion, one hundred sixty-six million, eight hundred fifty-three thousand, eight hundred two".