40666426000 has 40 divisors (see below), whose sum is σ = 98331422904. Its totient is φ = 16266569600.

The previous prime is 40666425967. The next prime is 40666426001. The reversal of 40666426000 is 62466604.

40666426000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 888516864 + 39777909136 = 29808^2 + 199444^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×40666426000² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40666426001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10164607 + ... + 10168606.

Almost surely, 2^40666426000 is an apocalyptic number.

40666426000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40666426000 is an abundant number, since it is smaller than the sum of its proper divisors (57664996904).

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

40666426000 is a wasteful number, since it uses less digits than its factorization.

40666426000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20333236 (or 20333220 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 34.

The spelling of 40666426000 in words is "forty billion, six hundred sixty-six million, four hundred twenty-six thousand".