40520501211 has 16 divisors (see below), whose sum is σ = 54817855488. Its totient is φ = 26621052000.

The previous prime is 40520501201. The next prime is 40520501213. The reversal of 40520501211 is 11210502504.

It is not a de Polignac number, because 40520501211 - 2⁷ = 40520501083 is a prime.

It is a super-2 number, since 2×40520501211² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40520501213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 269140 + ... + 391761.

It is an arithmetic number, because the mean of its divisors is an integer number (3426115968).

Almost surely, 2^40520501211 is an apocalyptic number.

40520501211 is a deficient number, since it is larger than the sum of its proper divisors (14297354277).

40520501211 is a wasteful number, since it uses less digits than its factorization.

40520501211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661202.

The product of its (nonzero) digits is 400, while the sum is 21.

The spelling of 40520501211 in words is "forty billion, five hundred twenty million, five hundred one thousand, two hundred eleven".