40345705216 has 18 divisors (see below), whose sum is σ = 80533810532. Its totient is φ = 20172852480.

The previous prime is 40345705193. The next prime is 40345705217. The reversal of 40345705216 is 61250754304.

It is not an unprimeable number, because it can be changed into a prime (40345705217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78799950 + ... + 78800461.

Almost surely, 2^40345705216 is an apocalyptic number.

It is an amenable number.

40345705216 is a deficient number, since it is larger than the sum of its proper divisors (40188105316).

40345705216 is an equidigital number, since it uses as much as digits as its factorization.

40345705216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157600427 (or 157600413 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 37.

The spelling of 40345705216 in words is "forty billion, three hundred forty-five million, seven hundred five thousand, two hundred sixteen".