1956997167 has 16 divisors (see below), whose sum is σ = 2634868320. Its totient is φ = 1291917312.

The previous prime is 1956997153. The next prime is 1956997193. The reversal of 1956997167 is 7617996591.

It is a happy number.

It is not a de Polignac number, because 1956997167 - 2⁸ = 1956996911 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1956997167.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1956997267) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 502833 + ... + 506709.

It is an arithmetic number, because the mean of its divisors is an integer number (164679270).

Almost surely, 2^1956997167 is an apocalyptic number.

1956997167 is a deficient number, since it is larger than the sum of its proper divisors (677871153).

1956997167 is a wasteful number, since it uses less digits than its factorization.

1956997167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5482.

The product of its digits is 6429780, while the sum is 60.

The square root of 1956997167 is about 44237.9607011897. The cubic root of 1956997167 is about 1250.8255169907.

The spelling of 1956997167 in words is "one billion, nine hundred fifty-six million, nine hundred ninety-seven thousand, one hundred sixty-seven".