40157950666 has 16 divisors (see below), whose sum is σ = 62788316256. Its totient is φ = 19244711376.

The previous prime is 40157950661. The next prime is 40157950667. The reversal of 40157950666 is 66605975104.

40157950666 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 2×40157950666² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40157950661) 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, 4044856 + ... + 4054771.

It is an arithmetic number, because the mean of its divisors is an integer number (3924269766).

Almost surely, 2^40157950666 is an apocalyptic number.

40157950666 is a deficient number, since it is larger than the sum of its proper divisors (22630365590).

40157950666 is a wasteful number, since it uses less digits than its factorization.

40157950666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8099733.

The product of its (nonzero) digits is 1360800, while the sum is 49.

The spelling of 40157950666 in words is "forty billion, one hundred fifty-seven million, nine hundred fifty thousand, six hundred sixty-six".