43421520066246 has 80 divisors (see below), whose sum is σ = 111205937230080. Its totient is φ = 12405023192880.

The previous prime is 43421520066233. The next prime is 43421520066263. The reversal of 43421520066246 is 64266002512434.

It is a happy number.

43421520066246 is a `hidden beast` number, since 4 + 3 + 4 + 2 + 15 + 2 + 0 + 0 + 6 + 624 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 10809711 + ... + 14272101.

It is an arithmetic number, because the mean of its divisors is an integer number (1390074215376).

Almost surely, 2^{43421520066246} is an apocalyptic number.

43421520066246 is an abundant number, since it is smaller than the sum of its proper divisors (67784417163834).

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

43421520066246 is a wasteful number, since it uses less digits than its factorization.

43421520066246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3473471 (or 3473462 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 45.

The spelling of 43421520066246 in words is "forty-three trillion, four hundred twenty-one billion, five hundred twenty million, sixty-six thousand, two hundred forty-six".