40016643261464 has 64 divisors (see below), whose sum is σ = 77044931006400. Its totient is φ = 19473700147200.

The previous prime is 40016643261391. The next prime is 40016643261473. The reversal of 40016643261464 is 46416234661004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 333364784 + ... + 333484800.

It is an arithmetic number, because the mean of its divisors is an integer number (1203827046975).

Almost surely, 2^{40016643261464} is an apocalyptic number.

It is an amenable number.

40016643261464 is a deficient number, since it is larger than the sum of its proper divisors (37028287744936).

40016643261464 is a wasteful number, since it uses less digits than its factorization.

40016643261464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122484 (or 122480 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 47.

The spelling of 40016643261464 in words is "forty trillion, sixteen billion, six hundred forty-three million, two hundred sixty-one thousand, four hundred sixty-four".