1956545605 has 16 divisors (see below), whose sum is σ = 2686083840. Its totient is φ = 1340220672.

The previous prime is 1956545599. The next prime is 1956545621. The reversal of 1956545605 is 5065456591.

It is not a de Polignac number, because 1956545605 - 2¹⁷ = 1956414533 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4941 + ... + 62749.

It is an arithmetic number, because the mean of its divisors is an integer number (167880240).

Almost surely, 2^1956545605 is an apocalyptic number.

It is an amenable number.

1956545605 is a deficient number, since it is larger than the sum of its proper divisors (729538235).

1956545605 is an equidigital number, since it uses as much as digits as its factorization.

1956545605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58788.

The product of its (nonzero) digits is 810000, while the sum is 46.

The square root of 1956545605 is about 44232.8566226510. The cubic root of 1956545605 is about 1250.7293034771.

The spelling of 1956545605 in words is "one billion, nine hundred fifty-six million, five hundred forty-five thousand, six hundred five".