40550723387155 has 16 divisors (see below), whose sum is σ = 48828245780160. Its totient is φ = 32328999462528.

The previous prime is 40550723387123. The next prime is 40550723387173. The reversal of 40550723387155 is 55178332705504.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 40550723387155 - 2⁵ = 40550723387123 is a prime.

It is a super-2 number, since 2×40550723387155² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40550723387096 and 40550723387105.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57825154 + ... + 58522216.

It is an arithmetic number, because the mean of its divisors is an integer number (3051765361260).

Almost surely, 2^{40550723387155} is an apocalyptic number.

40550723387155 is a deficient number, since it is larger than the sum of its proper divisors (8277522393005).

40550723387155 is a wasteful number, since it uses less digits than its factorization.

40550723387155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 737070.

The product of its (nonzero) digits is 17640000, while the sum is 55.

The spelling of 40550723387155 in words is "forty trillion, five hundred fifty billion, seven hundred twenty-three million, three hundred eighty-seven thousand, one hundred fifty-five".