66433166460 has 72 divisors (see below), whose sum is σ = 201539847600. Its totient is φ = 17713233408.

The previous prime is 66433166441. The next prime is 66433166461. The reversal of 66433166460 is 6466133466.

66433166460 is a `hidden beast` number, since 66 + 43 + 31 + 66 + 460 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66433166461) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1745716 + ... + 1783364.

It is an arithmetic number, because the mean of its divisors is an integer number (2799164550).

Almost surely, 2^66433166460 is an apocalyptic number.

66433166460 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

66433166460 is an abundant number, since it is smaller than the sum of its proper divisors (135106681140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66433166460 is a wasteful number, since it uses less digits than its factorization.

66433166460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47467 (or 47462 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 45.

The spelling of 66433166460 in words is "sixty-six billion, four hundred thirty-three million, one hundred sixty-six thousand, four hundred sixty".