40165784864007 has 32 divisors (see below), whose sum is σ = 61547568933120. Its totient is φ = 23043050968320.

The previous prime is 40165784863991. The next prime is 40165784864021. The reversal of 40165784864007 is 70046848756104.

It is not a de Polignac number, because 40165784864007 - 2⁴ = 40165784863991 is a prime.

It is a super-2 number, since 2×40165784864007² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40165784864507) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25117798 + ... + 26668995.

It is an arithmetic number, because the mean of its divisors is an integer number (1923361529160).

Almost surely, 2^{40165784864007} is an apocalyptic number.

40165784864007 is a deficient number, since it is larger than the sum of its proper divisors (21381784069113).

40165784864007 is a wasteful number, since it uses less digits than its factorization.

40165784864007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51788063.

The product of its (nonzero) digits is 36126720, while the sum is 60.

The spelling of 40165784864007 in words is "forty trillion, one hundred sixty-five billion, seven hundred eighty-four million, eight hundred sixty-four thousand, seven".