40266695536400 has 60 divisors (see below), whose sum is σ = 102431367574452. Its totient is φ = 15159226552320.

The previous prime is 40266695536399. The next prime is 40266695536429. The reversal of 40266695536400 is 463559666204.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 145264650496 + 40121430885904 = 381136^2 + 6334148^2 .

It is a super-2 number, since 2×40266695536400² (a number of 28 digits) contains 22 as substring.

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, 2960779637 + ... + 2960793236.

Almost surely, 2^{40266695536400} is an apocalyptic number.

40266695536400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40266695536400 is an abundant number, since it is smaller than the sum of its proper divisors (62164672038052).

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

40266695536400 is a wasteful number, since it uses less digits than its factorization.

40266695536400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5921572908 (or 5921572897 counting only the distinct ones).

The product of its (nonzero) digits is 27993600, while the sum is 56.

The spelling of 40266695536400 in words is "forty trillion, two hundred sixty-six billion, six hundred ninety-five million, five hundred thirty-six thousand, four hundred".