40557064191 has 64 divisors (see below), whose sum is σ = 65278642176. Its totient is φ = 21897216000.

The previous prime is 40557064159. The next prime is 40557064243. The reversal of 40557064191 is 19146075504.

It is not a de Polignac number, because 40557064191 - 2⁵ = 40557064159 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40557064151) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 31269255 + ... + 31270551.

It is an arithmetic number, because the mean of its divisors is an integer number (1019978784).

Almost surely, 2^40557064191 is an apocalyptic number.

40557064191 is a deficient number, since it is larger than the sum of its proper divisors (24721577985).

40557064191 is a wasteful number, since it uses less digits than its factorization.

40557064191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2072.

The product of its (nonzero) digits is 151200, while the sum is 42.

The spelling of 40557064191 in words is "forty billion, five hundred fifty-seven million, sixty-four thousand, one hundred ninety-one".