40651618128 has 80 divisors (see below), whose sum is σ = 115293590976. Its totient is φ = 12240184320.

The previous prime is 40651618103. The next prime is 40651618177. The reversal of 40651618128 is 82181615604.

40651618128 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 40651618128.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 162301 + ... + 328092.

Almost surely, 2^40651618128 is an apocalyptic number.

40651618128 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

40651618128 is an abundant number, since it is smaller than the sum of its proper divisors (74641972848).

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

40651618128 is a wasteful number, since it uses less digits than its factorization.

40651618128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490572 (or 490566 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 42.

The spelling of 40651618128 in words is "forty billion, six hundred fifty-one million, six hundred eighteen thousand, one hundred twenty-eight".