40161108543577 has 72 divisors (see below), whose sum is σ = 47851157049696. Its totient is φ = 33603785058816.

The previous prime is 40161108543509. The next prime is 40161108543601. The reversal of 40161108543577 is 77534580116104.

It is not a de Polignac number, because 40161108543577 - 2³¹ = 40158961059929 is a prime.

It is a super-2 number, since 2×40161108543577² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40161108543077) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 14968730878 + ... + 14968733560.

It is an arithmetic number, because the mean of its divisors is an integer number (664599403468).

Almost surely, 2^{40161108543577} is an apocalyptic number.

It is an amenable number.

40161108543577 is a deficient number, since it is larger than the sum of its proper divisors (7690048506119).

40161108543577 is a wasteful number, since it uses less digits than its factorization.

40161108543577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3235 (or 3089 counting only the distinct ones).

The product of its (nonzero) digits is 2822400, while the sum is 52.

The spelling of 40161108543577 in words is "forty trillion, one hundred sixty-one billion, one hundred eight million, five hundred forty-three thousand, five hundred seventy-seven".