40145603445 has 48 divisors (see below), whose sum is σ = 74120417280. Its totient is φ = 20030787072.

The previous prime is 40145603413. The next prime is 40145603453. The reversal of 40145603445 is 54430654104.

40145603445 is a `hidden beast` number, since 4 + 0 + 1 + 4 + 5 + 603 + 4 + 45 = 666.

It is not a de Polignac number, because 40145603445 - 2⁵ = 40145603413 is a prime.

It is a super-2 number, since 2×40145603445² (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 47 ways as a sum of consecutive naturals, for example, 29365 + ... + 284874.

It is an arithmetic number, because the mean of its divisors is an integer number (1544175360).

Almost surely, 2^40145603445 is an apocalyptic number.

40145603445 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

40145603445 is a deficient number, since it is larger than the sum of its proper divisors (33974813835).

40145603445 is a wasteful number, since it uses less digits than its factorization.

40145603445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314434 (or 314431 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

The spelling of 40145603445 in words is "forty billion, one hundred forty-five million, six hundred three thousand, four hundred forty-five".