40151464065 has 24 divisors (see below), whose sum is σ = 69662935680. Its totient is φ = 21393478944.

The previous prime is 40151464063. The next prime is 40151464081. The reversal of 40151464065 is 56046415104.

40151464065 is a `hidden beast` number, since 4 + 0 + 1 + 5 + 1 + 4 + 640 + 6 + 5 = 666.

It is not a de Polignac number, because 40151464065 - 2¹ = 40151464063 is a prime.

It is a super-2 number, since 2×40151464065² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40151464063) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 382627 + ... + 476136.

It is an arithmetic number, because the mean of its divisors is an integer number (2902622320).

Almost surely, 2^40151464065 is an apocalyptic number.

40151464065 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

40151464065 is a deficient number, since it is larger than the sum of its proper divisors (29511471615).

40151464065 is a wasteful number, since it uses less digits than its factorization.

40151464065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 859813 (or 859810 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

Adding to 40151464065 its reverse (56046415104), we get a palindrome (96197879169).

The spelling of 40151464065 in words is "forty billion, one hundred fifty-one million, four hundred sixty-four thousand, sixty-five".