40665626342 has 8 divisors (see below), whose sum is σ = 66543752232. Its totient is φ = 18484375600.

The previous prime is 40665626341. The next prime is 40665626401. The reversal of 40665626342 is 24362656604.

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

It is a junction number, because it is equal to n+sod(n) for n = 40665626293 and 40665626302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40665626341) 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, 924218759 + ... + 924218802.

It is an arithmetic number, because the mean of its divisors is an integer number (8317969029).

Almost surely, 2^40665626342 is an apocalyptic number.

40665626342 is a deficient number, since it is larger than the sum of its proper divisors (25878125890).

40665626342 is a wasteful number, since it uses less digits than its factorization.

40665626342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1848437574.

The product of its (nonzero) digits is 1244160, while the sum is 44.

The spelling of 40665626342 in words is "forty billion, six hundred sixty-five million, six hundred twenty-six thousand, three hundred forty-two".