40056198550 has 24 divisors (see below), whose sum is σ = 77743858896. Its totient is φ = 15325849440.

The previous prime is 40056198517. The next prime is 40056198551. The reversal of 40056198550 is 5589165004.

It is a junction number, because it is equal to n+sod(n) for n = 40056198497 and 40056198506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40056198551) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17414589 + ... + 17416888.

It is an arithmetic number, because the mean of its divisors is an integer number (3239327454).

Almost surely, 2^40056198550 is an apocalyptic number.

40056198550 is a deficient number, since it is larger than the sum of its proper divisors (37687660346).

40056198550 is a wasteful number, since it uses less digits than its factorization.

40056198550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34831512 (or 34831507 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 43.

The spelling of 40056198550 in words is "forty billion, fifty-six million, one hundred ninety-eight thousand, five hundred fifty".