40018262016 has 96 divisors (see below), whose sum is σ = 107747312400. Its totient is φ = 13207142400.

The previous prime is 40018261973. The next prime is 40018262029. The reversal of 40018262016 is 61026281004.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×40018262016² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 588300 + ... + 652788.

Almost surely, 2^40018262016 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40018262016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53873656200).

40018262016 is an abundant number, since it is smaller than the sum of its proper divisors (67729050384).

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

40018262016 is a wasteful number, since it uses less digits than its factorization.

40018262016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64615 (or 64595 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The spelling of 40018262016 in words is "forty billion, eighteen million, two hundred sixty-two thousand, sixteen".