40155171383 has 4 divisors (see below), whose sum is σ = 40569142320. Its totient is φ = 39741200448.

The previous prime is 40155171367. The next prime is 40155171409. The reversal of 40155171383 is 38317155104.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40155171383 - 2⁴ = 40155171367 is a prime.

It is a super-2 number, since 2×40155171383² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40155131383) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 206985323 + ... + 206985516.

It is an arithmetic number, because the mean of its divisors is an integer number (10142285580).

Almost surely, 2^40155171383 is an apocalyptic number.

40155171383 is a deficient number, since it is larger than the sum of its proper divisors (413970937).

40155171383 is an equidigital number, since it uses as much as digits as its factorization.

40155171383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413970936.

The product of its (nonzero) digits is 50400, while the sum is 38.

The spelling of 40155171383 in words is "forty billion, one hundred fifty-five million, one hundred seventy-one thousand, three hundred eighty-three".