1956120256 has 14 divisors (see below), whose sum is σ = 3881676260. Its totient is φ = 978060096.

The previous prime is 1956120253. The next prime is 1956120259. The reversal of 1956120256 is 6520216591.

It is an interprime number because it is at equal distance from previous prime (1956120253) and next prime (1956120259).

It is not an unprimeable number, because it can be changed into a prime (1956120253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15282126 + ... + 15282253.

It is an arithmetic number, because the mean of its divisors is an integer number (277262590).

Almost surely, 2^1956120256 is an apocalyptic number.

1956120256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1956120256 is a deficient number, since it is larger than the sum of its proper divisors (1925556004).

1956120256 is an equidigital number, since it uses as much as digits as its factorization.

1956120256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30564391 (or 30564381 counting only the distinct ones).

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

The square root of 1956120256 is about 44228.0482951712. The cubic root of 1956120256 is about 1250.6386615802.

The spelling of 1956120256 in words is "one billion, nine hundred fifty-six million, one hundred twenty thousand, two hundred fifty-six".