40666673340 has 36 divisors (see below), whose sum is σ = 123355576344. Its totient is φ = 10844446176.

The previous prime is 40666673309. The next prime is 40666673347. The reversal of 40666673340 is 4337666604.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40666673347) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 112962802 + ... + 112963161.

Almost surely, 2^40666673340 is an apocalyptic number.

It is an amenable number.

40666673340 is an abundant number, since it is smaller than the sum of its proper divisors (82688903004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40666673340 is a wasteful number, since it uses less digits than its factorization.

40666673340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225925978 (or 225925973 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 45.

The spelling of 40666673340 in words is "forty billion, six hundred sixty-six million, six hundred seventy-three thousand, three hundred forty".