40506117550 has 12 divisors (see below), whose sum is σ = 75341378736. Its totient is φ = 16202447000.

The previous prime is 40506117523. The next prime is 40506117559. The reversal of 40506117550 is 5571160504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40506117559) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 405061126 + ... + 405061225.

It is an arithmetic number, because the mean of its divisors is an integer number (6278448228).

Almost surely, 2^40506117550 is an apocalyptic number.

40506117550 is a deficient number, since it is larger than the sum of its proper divisors (34835261186).

40506117550 is a wasteful number, since it uses less digits than its factorization.

40506117550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 810122363 (or 810122358 counting only the distinct ones).

The product of its (nonzero) digits is 21000, while the sum is 34.

The spelling of 40506117550 in words is "forty billion, five hundred six million, one hundred seventeen thousand, five hundred fifty".