40016601265723 has 4 divisors (see below), whose sum is σ = 40331692614400. Its totient is φ = 39701509917048.

The previous prime is 40016601265717. The next prime is 40016601265763. The reversal of 40016601265723 is 32756210661004.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40016601265723 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40016601265723.

It is not an unprimeable number, because it can be changed into a prime (40016601265763) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 157545674148 + ... + 157545674401.

It is an arithmetic number, because the mean of its divisors is an integer number (10082923153600).

Almost surely, 2^{40016601265723} is an apocalyptic number.

40016601265723 is a deficient number, since it is larger than the sum of its proper divisors (315091348677).

40016601265723 is a wasteful number, since it uses less digits than its factorization.

40016601265723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315091348676.

The product of its (nonzero) digits is 362880, while the sum is 43.

The spelling of 40016601265723 in words is "forty trillion, sixteen billion, six hundred one million, two hundred sixty-five thousand, seven hundred twenty-three".