40623448430665 has 8 divisors (see below), whose sum is σ = 48748529535048. Its totient is φ = 32498497799040.

The previous prime is 40623448430641. The next prime is 40623448430681. The reversal of 40623448430665 is 56603484432604.

It can be written as a sum of positive squares in 4 ways, for example, as 2376496644921 + 38246951785744 = 1541589^2 + 6184412^2 .

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

It is not a de Polignac number, because 40623448430665 - 2¹¹ = 40623448428617 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31931892 + ... + 33179701.

It is an arithmetic number, because the mean of its divisors is an integer number (6093566191881).

Almost surely, 2^{40623448430665} is an apocalyptic number.

It is an amenable number.

40623448430665 is a deficient number, since it is larger than the sum of its proper divisors (8125081104383).

40623448430665 is a wasteful number, since it uses less digits than its factorization.

40623448430665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65236379.

The product of its (nonzero) digits is 39813120, while the sum is 55.

The spelling of 40623448430665 in words is "forty trillion, six hundred twenty-three billion, four hundred forty-eight million, four hundred thirty thousand, six hundred sixty-five".