40155052057 has 8 divisors (see below), whose sum is σ = 40529726600. Its totient is φ = 39780491904.

The previous prime is 40155052051. The next prime is 40155052081. The reversal of 40155052057 is 75025055104.

40155052057 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 5780408841 + 34374643216 = 76029^2 + 185404^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40155052057 - 2²³ = 40146663449 is a prime.

It is a super-2 number, since 2×40155052057² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40155052051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 783619 + ... + 833287.

It is an arithmetic number, because the mean of its divisors is an integer number (5066215825).

Almost surely, 2^40155052057 is an apocalyptic number.

It is an amenable number.

40155052057 is a deficient number, since it is larger than the sum of its proper divisors (374674543).

40155052057 is a wasteful number, since it uses less digits than its factorization.

40155052057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57195.

The product of its (nonzero) digits is 35000, while the sum is 34.

The spelling of 40155052057 in words is "forty billion, one hundred fifty-five million, fifty-two thousand, fifty-seven".