40155504331 has 8 divisors (see below), whose sum is σ = 40694809680. Its totient is φ = 39617520672.

The previous prime is 40155504329. The next prime is 40155504353. The reversal of 40155504331 is 13340555104.

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 40155504331 - 2¹ = 40155504329 is a prime.

It is a super-2 number, since 2×40155504331² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40155504293 and 40155504302.

It is not an unprimeable number, because it can be changed into a prime (40155504131) 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, 269176 + ... + 390853.

It is an arithmetic number, because the mean of its divisors is an integer number (5086851210).

Almost surely, 2^40155504331 is an apocalyptic number.

40155504331 is a deficient number, since it is larger than the sum of its proper divisors (539305349).

40155504331 is an equidigital number, since it uses as much as digits as its factorization.

40155504331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660845.

The product of its (nonzero) digits is 18000, while the sum is 31.

The spelling of 40155504331 in words is "forty billion, one hundred fifty-five million, five hundred four thousand, three hundred thirty-one".