40550664450 has 192 divisors, whose sum is σ = 105913221120. Its totient is φ = 10254816000.

The previous prime is 40550664437. The next prime is 40550664493. The reversal of 40550664450 is 5446605504.

It is a junction number, because it is equal to n+sod(n) for n = 40550664399 and 40550664408.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 61347120 + ... + 61347780.

It is an arithmetic number, because the mean of its divisors is an integer number (551631360).

Almost surely, 2^40550664450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40550664450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52956610560).

40550664450 is an abundant number, since it is smaller than the sum of its proper divisors (65362556670).

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

40550664450 is a wasteful number, since it uses less digits than its factorization.

40550664450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 953 (or 948 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 39.

The spelling of 40550664450 in words is "forty billion, five hundred fifty million, six hundred sixty-four thousand, four hundred fifty".