40266453645 has 64 divisors (see below), whose sum is σ = 78529305600. Its totient is φ = 19413933120.

The previous prime is 40266453613. The next prime is 40266453649. The reversal of 40266453645 is 54635466204.

It is a happy number.

It is not a de Polignac number, because 40266453645 - 2⁵ = 40266453613 is a prime.

It is a super-3 number, since 3×40266453645³ (a number of 33 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 40266453645.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40266453649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 190074 + ... + 341556.

It is an arithmetic number, because the mean of its divisors is an integer number (1227020400).

Almost surely, 2^40266453645 is an apocalyptic number.

40266453645 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

40266453645 is a deficient number, since it is larger than the sum of its proper divisors (38262851955).

40266453645 is a wasteful number, since it uses less digits than its factorization.

40266453645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151687 (or 151681 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 45.

The spelling of 40266453645 in words is "forty billion, two hundred sixty-six million, four hundred fifty-three thousand, six hundred forty-five".