42016356157 has 2 divisors, whose sum is σ = 42016356158. Its totient is φ = 42016356156.

The previous prime is 42016356127. The next prime is 42016356163. The reversal of 42016356157 is 75165361024.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34469264281 + 7547091876 = 185659^2 + 86874^2 .

It is a cyclic number.

It is not a de Polignac number, because 42016356157 - 2⁷ = 42016356029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42016356127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21008178078 + 21008178079.

It is an arithmetic number, because the mean of its divisors is an integer number (21008178079).

Almost surely, 2^42016356157 is an apocalyptic number.

It is an amenable number.

42016356157 is a deficient number, since it is larger than the sum of its proper divisors (1).

42016356157 is an equidigital number, since it uses as much as digits as its factorization.

42016356157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 151200, while the sum is 40.

The spelling of 42016356157 in words is "forty-two billion, sixteen million, three hundred fifty-six thousand, one hundred fifty-seven".