40621066513366 has 4 divisors (see below), whose sum is σ = 60931599770052. Its totient is φ = 20310533256682.

The previous prime is 40621066513327. The next prime is 40621066513459. The reversal of 40621066513366 is 66331566012604.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10155266628340 + ... + 10155266628343.

It is an arithmetic number, because the mean of its divisors is an integer number (15232899942513).

Almost surely, 2^{40621066513366} is an apocalyptic number.

40621066513366 is a deficient number, since it is larger than the sum of its proper divisors (20310533256686).

40621066513366 is a wasteful number, since it uses less digits than its factorization.

40621066513366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20310533256685.

The product of its (nonzero) digits is 2799360, while the sum is 49.

The spelling of 40621066513366 in words is "forty trillion, six hundred twenty-one billion, sixty-six million, five hundred thirteen thousand, three hundred sixty-six".