40145831550 has 120 divisors (see below), whose sum is σ = 121686611112. Its totient is φ = 9732312000.

The previous prime is 40145831521. The next prime is 40145831573. The reversal of 40145831550 is 5513854104.

40145831550 is a `hidden beast` number, since 4 + 0 + 14 + 583 + 15 + 50 = 666.

40145831550 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×40145831550² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 406021 + ... + 495120.

Almost surely, 2^40145831550 is an apocalyptic number.

40145831550 is an abundant number, since it is smaller than the sum of its proper divisors (81540779562).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40145831550 is a wasteful number, since it uses less digits than its factorization.

40145831550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 901176 (or 901162 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 36.

The spelling of 40145831550 in words is "forty billion, one hundred forty-five million, eight hundred thirty-one thousand, five hundred fifty".