2052161956 has 48 divisors (see below), whose sum is σ = 4076800000. Its totient is φ = 896044032.

The previous prime is 2052161933. The next prime is 2052161957. The reversal of 2052161956 is 6591612502.

It is a super-2 number, since 2×2052161956² = 8422737387307491872, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2052161957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1233181 + ... + 1234843.

Almost surely, 2^2052161956 is an apocalyptic number.

2052161956 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

2052161956 is a deficient number, since it is larger than the sum of its proper divisors (2024638044).

2052161956 is a wasteful number, since it uses less digits than its factorization.

2052161956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2948 (or 2946 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 37.

The square root of 2052161956 is about 45300.7942093734. The cubic root of 2052161956 is about 1270.7805060268.

The spelling of 2052161956 in words is "two billion, fifty-two million, one hundred sixty-one thousand, nine hundred fifty-six".