40806664420800 has 84 divisors (see below), whose sum is σ = 133879864869656. Its totient is φ = 10881777177600.

The previous prime is 40806664420799. The next prime is 40806664420843. The reversal of 40806664420800 is 802446660804.

It is a super-2 number, since 2×40806664420800² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 40806664420800.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4250689411 + ... + 4250699010.

Almost surely, 2^{40806664420800} is an apocalyptic number.

40806664420800 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40806664420800 is an abundant number, since it is smaller than the sum of its proper divisors (93073200448856).

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

40806664420800 is a wasteful number, since it uses less digits than its factorization.

40806664420800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8501388446 (or 8501388431 counting only the distinct ones).

The product of its (nonzero) digits is 1769472, while the sum is 48.

The spelling of 40806664420800 in words is "forty trillion, eight hundred six billion, six hundred sixty-four million, four hundred twenty thousand, eight hundred".