40461320664650 has 24 divisors (see below), whose sum is σ = 75258538757964. Its totient is φ = 16184424540800.

The previous prime is 40461320664631. The next prime is 40461320664673. The reversal of 40461320664650 is 5646602316404.

It can be written as a sum of positive squares in 6 ways, for example, as 28726030350889 + 11735290313761 = 5359667^2 + 3425681^2 .

It is a junction number, because it is equal to n+sod(n) for n = 40461320664595 and 40461320664604.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5539040 + ... + 10564260.

Almost surely, 2^{40461320664650} is an apocalyptic number.

40461320664650 is a deficient number, since it is larger than the sum of its proper divisors (34797218093314).

40461320664650 is a wasteful number, since it uses less digits than its factorization.

40461320664650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5186266 (or 5186261 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 47.

The spelling of 40461320664650 in words is "forty trillion, four hundred sixty-one billion, three hundred twenty million, six hundred sixty-four thousand, six hundred fifty".