40646751550 has 12 divisors (see below), whose sum is σ = 75602957976. Its totient is φ = 16258700600.

The previous prime is 40646751539. The next prime is 40646751553. The reversal of 40646751550 is 5515764604.

It is a junction number, because it is equal to n+sod(n) for n = 40646751497 and 40646751506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40646751553) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 406467466 + ... + 406467565.

It is an arithmetic number, because the mean of its divisors is an integer number (6300246498).

Almost surely, 2^40646751550 is an apocalyptic number.

40646751550 is a deficient number, since it is larger than the sum of its proper divisors (34956206426).

40646751550 is a wasteful number, since it uses less digits than its factorization.

40646751550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 812935043 (or 812935038 counting only the distinct ones).

The product of its (nonzero) digits is 504000, while the sum is 43.

The spelling of 40646751550 in words is "forty billion, six hundred forty-six million, seven hundred fifty-one thousand, five hundred fifty".