40646417776 has 20 divisors (see below), whose sum is σ = 78757342144. Its totient is φ = 20321942400.

The previous prime is 40646417729. The next prime is 40646417809. The reversal of 40646417776 is 67771464604.

It is a super-2 number, since 2×40646417776² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 219841 + ... + 360031.

Almost surely, 2^40646417776 is an apocalyptic number.

It is an amenable number.

40646417776 is a deficient number, since it is larger than the sum of its proper divisors (38110924368).

40646417776 is a wasteful number, since it uses less digits than its factorization.

40646417776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158320 (or 158314 counting only the distinct ones).

The product of its (nonzero) digits is 4741632, while the sum is 52.

The spelling of 40646417776 in words is "forty billion, six hundred forty-six million, four hundred seventeen thousand, seven hundred seventy-six".