40666101312720 has 160 divisors (see below), whose sum is σ = 137674359777024. Its totient is φ = 9869129625600.

The previous prime is 40666101312677. The next prime is 40666101312787. The reversal of 40666101312720 is 2721310166604.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 91567261 + ... + 92010300.

Almost surely, 2^{40666101312720} is an apocalyptic number.

40666101312720 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40666101312720 is an abundant number, since it is smaller than the sum of its proper divisors (97008258464304).

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

40666101312720 is a wasteful number, since it uses less digits than its factorization.

40666101312720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183577661 (or 183577655 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 39.

The spelling of 40666101312720 in words is "forty trillion, six hundred sixty-six billion, one hundred one million, three hundred twelve thousand, seven hundred twenty".