40838162664 has 32 divisors (see below), whose sum is σ = 109948900320. Its totient is φ = 12565588416.

The previous prime is 40838162633. The next prime is 40838162669. The reversal of 40838162664 is 46626183804.

It is not an unprimeable number, because it can be changed into a prime (40838162669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65445462 + ... + 65446085.

It is an arithmetic number, because the mean of its divisors is an integer number (3435903135).

Almost surely, 2^40838162664 is an apocalyptic number.

It is an amenable number.

40838162664 is an abundant number, since it is smaller than the sum of its proper divisors (69110737656).

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

40838162664 is a wasteful number, since it uses less digits than its factorization.

40838162664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130891569 (or 130891565 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 48.

The spelling of 40838162664 in words is "forty billion, eight hundred thirty-eight million, one hundred sixty-two thousand, six hundred sixty-four".