66770063254 has 8 divisors (see below), whose sum is σ = 100157435640. Its totient is φ = 33384251376.

The previous prime is 66770063201. The next prime is 66770063257. The reversal of 66770063254 is 45236007766.

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

It is a super-2 number, since 2×66770063254² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66770063257) 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, 276544 + ... + 458275.

It is an arithmetic number, because the mean of its divisors is an integer number (12519679455).

Almost surely, 2^66770063254 is an apocalyptic number.

66770063254 is a deficient number, since it is larger than the sum of its proper divisors (33387372386).

66770063254 is a wasteful number, since it uses less digits than its factorization.

66770063254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 780254.

The product of its (nonzero) digits is 1270080, while the sum is 46.

The spelling of 66770063254 in words is "sixty-six billion, seven hundred seventy million, sixty-three thousand, two hundred fifty-four".