40697386560 has 168 divisors, whose sum is σ = 142072010496. Its totient is φ = 10690606080.

The previous prime is 40697386529. The next prime is 40697386603. The reversal of 40697386560 is 6568379604.

40697386560 is a `hidden beast` number, since 4 + 0 + 6 + 9 + 73 + 8 + 6 + 560 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 40697386497 and 40697386506.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 87505 + ... + 298415.

Almost surely, 2^40697386560 is an apocalyptic number.

40697386560 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40697386560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71036005248).

40697386560 is an abundant number, since it is smaller than the sum of its proper divisors (101374623936).

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

40697386560 is a wasteful number, since it uses less digits than its factorization.

40697386560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211001 (or 210988 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 54.

The spelling of 40697386560 in words is "forty billion, six hundred ninety-seven million, three hundred eighty-six thousand, five hundred sixty".