40661602346 has 8 divisors (see below), whose sum is σ = 64202530080. Its totient is φ = 19260758988.

The previous prime is 40661602297. The next prime is 40661602349. The reversal of 40661602346 is 64320616604.

It is a happy number.

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

It is a Harshad number since it is a multiple of its sum of digits (38), and also a Moran number because the ratio is a prime number: 1070042167 = 40661602346 / (4 + 0 + 6 + 6 + 1 + 6 + 0 + 2 + 3 + 4 + 6).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (40661602349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 535021046 + ... + 535021121.

It is an arithmetic number, because the mean of its divisors is an integer number (8025316260).

Almost surely, 2^40661602346 is an apocalyptic number.

40661602346 is a deficient number, since it is larger than the sum of its proper divisors (23540927734).

40661602346 is a wasteful number, since it uses less digits than its factorization.

40661602346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1070042188.

The product of its (nonzero) digits is 124416, while the sum is 38.

The spelling of 40661602346 in words is "forty billion, six hundred sixty-one million, six hundred two thousand, three hundred forty-six".