40266563212836 has 63 divisors (see below), whose sum is σ = 105652296595083. Its totient is φ = 13422073516920.

The previous prime is 40266563212823. The next prime is 40266563212859. The reversal of 40266563212836 is 63821236566204.

It is a happy number.

The square root of 40266563212836 is 6345594.

It is a perfect power (a square), and thus also a powerful number.

40266563212836 is a `hidden beast` number, since 4 + 0 + 2 + 6 + 6 + 563 + 21 + 28 + 36 = 666.

It is a super-2 number, since 2×40266563212836² (a number of 28 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 20 ways as a sum of consecutive naturals, for example, 342603321 + ... + 342720831.

Almost surely, 2^{40266563212836} is an apocalyptic number.

40266563212836 is the 6345594-th square number.

It is an amenable number.

40266563212836 is an abundant number, since it is smaller than the sum of its proper divisors (65385733382247).

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

40266563212836 is an frugal number, since it uses more digits than its factorization.

40266563212836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235044 (or 117516 counting only the distinct ones).

The product of its (nonzero) digits is 14929920, while the sum is 54.

The spelling of 40266563212836 in words is "forty trillion, two hundred sixty-six billion, five hundred sixty-three million, two hundred twelve thousand, eight hundred thirty-six".