40366770646 has 8 divisors (see below), whose sum is σ = 61692611904. Its totient is φ = 19802566680.

The previous prime is 40366770629. The next prime is 40366770649. The reversal of 40366770646 is 64607766304.

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

It is a self number, because there is not a number n which added to its sum of digits gives 40366770646.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40366770649) 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, 190409190 + ... + 190409401.

It is an arithmetic number, because the mean of its divisors is an integer number (7711576488).

Almost surely, 2^40366770646 is an apocalyptic number.

40366770646 is a deficient number, since it is larger than the sum of its proper divisors (21325841258).

40366770646 is a wasteful number, since it uses less digits than its factorization.

40366770646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380818646.

The product of its (nonzero) digits is 3048192, while the sum is 49.

The spelling of 40366770646 in words is "forty billion, three hundred sixty-six million, seven hundred seventy thousand, six hundred forty-six".