40081154016665 has 8 divisors (see below), whose sum is σ = 48119828782848. Its totient is φ = 32049960571440.

The previous prime is 40081154016653. The next prime is 40081154016751. The reversal of 40081154016665 is 56661045118004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40081154016665 - 2¹⁰ = 40081154015641 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1870318451 + ... + 1870339880.

It is an arithmetic number, because the mean of its divisors is an integer number (6014978597856).

Almost surely, 2^{40081154016665} is an apocalyptic number.

It is an amenable number.

40081154016665 is a deficient number, since it is larger than the sum of its proper divisors (8038674766183).

40081154016665 is a wasteful number, since it uses less digits than its factorization.

40081154016665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3740660479.

The product of its (nonzero) digits is 691200, while the sum is 47.

The spelling of 40081154016665 in words is "forty trillion, eighty-one billion, one hundred fifty-four million, sixteen thousand, six hundred sixty-five".