40157955667 has 2 divisors, whose sum is σ = 40157955668. Its totient is φ = 40157955666.

The previous prime is 40157955623. The next prime is 40157955689. The reversal of 40157955667 is 76655975104.

40157955667 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40157955667 is a prime.

It is a super-2 number, since 2×40157955667² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (40157950667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20078977833 + 20078977834.

It is an arithmetic number, because the mean of its divisors is an integer number (20078977834).

Almost surely, 2^40157955667 is an apocalyptic number.

40157955667 is a deficient number, since it is larger than the sum of its proper divisors (1).

40157955667 is an equidigital number, since it uses as much as digits as its factorization.

40157955667 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7938000, while the sum is 55.

The spelling of 40157955667 in words is "forty billion, one hundred fifty-seven million, nine hundred fifty-five thousand, six hundred sixty-seven".