3957222156067 has 4 divisors (see below), whose sum is σ = 3969946343376. Its totient is φ = 3944497968760.

The previous prime is 3957222156047. The next prime is 3957222156133. The reversal of 3957222156067 is 7606512227593.

3957222156067 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3957222156067 is a prime.

It is a super-2 number, since 2×3957222156067² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3957222155999 and 3957222156017.

It is not an unprimeable number, because it can be changed into a prime (3957222156007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6362093188 + ... + 6362093809.

It is an arithmetic number, because the mean of its divisors is an integer number (992486585844).

Almost surely, 2^{3957222156067} is an apocalyptic number.

3957222156067 is a deficient number, since it is larger than the sum of its proper divisors (12724187309).

3957222156067 is a wasteful number, since it uses less digits than its factorization.

3957222156067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12724187308.

The product of its (nonzero) digits is 9525600, while the sum is 55.

The spelling of 3957222156067 in words is "three trillion, nine hundred fifty-seven billion, two hundred twenty-two million, one hundred fifty-six thousand, sixty-seven".