40658466129616 has 40 divisors (see below), whose sum is σ = 81391059995904. Its totient is φ = 19655517223680.

The previous prime is 40658466129599. The next prime is 40658466129637. The reversal of 40658466129616 is 61692166485604.

It is a super-5 number, since 5×40658466129616⁵ (a number of 69 digits) contains 55555 as substring. Note that it is a super-d number also for d = 2.

It is a Smith number, since the sum of its digits (64) coincides with the sum of the digits of its prime factors.

It is a congruent 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, 36818110 + ... + 37906333.

Almost surely, 2^{40658466129616} is an apocalyptic number.

It is an amenable number.

40658466129616 is an abundant number, since it is smaller than the sum of its proper divisors (40732593866288).

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

40658466129616 is a wasteful number, since it uses less digits than its factorization.

40658466129616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74725579 (or 74725573 counting only the distinct ones).

The product of its (nonzero) digits is 89579520, while the sum is 64.

The spelling of 40658466129616 in words is "forty trillion, six hundred fifty-eight billion, four hundred sixty-six million, one hundred twenty-nine thousand, six hundred sixteen".