40155005501001 has 16 divisors (see below), whose sum is σ = 60044868043200. Its totient is φ = 26519816715264.

The previous prime is 40155005500937. The next prime is 40155005501047. The reversal of 40155005501001 is 10010550055104.

40155005501001 is a `hidden beast` number, since 4 + 0 + 1 + 5 + 5 + 0 + 0 + 550 + 100 + 1 = 666.

It is not a de Polignac number, because 40155005501001 - 2⁶ = 40155005500937 is a prime.

It is a super-2 number, since 2×40155005501001² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (40155005501071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6949634616 + ... + 6949640393.

It is an arithmetic number, because the mean of its divisors is an integer number (3752804252700).

Almost surely, 2^{40155005501001} is an apocalyptic number.

It is an amenable number.

40155005501001 is a deficient number, since it is larger than the sum of its proper divisors (19889862542199).

40155005501001 is a wasteful number, since it uses less digits than its factorization.

40155005501001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13899275125 (or 13899275119 counting only the distinct ones).

The product of its (nonzero) digits is 2500, while the sum is 27.

Adding to 40155005501001 its reverse (10010550055104), we get a palindrome (50165555556105).

The spelling of 40155005501001 in words is "forty trillion, one hundred fifty-five billion, five million, five hundred one thousand, one".