1955608641 has 24 divisors (see below), whose sum is σ = 3237921024. Its totient is φ = 1114162560.

The previous prime is 1955608639. The next prime is 1955608667. The reversal of 1955608641 is 1468065591.

1955608641 is a `hidden beast` number, since 1 + 9 + 5 + 560 + 86 + 4 + 1 = 666.

It is not a de Polignac number, because 1955608641 - 2¹ = 1955608639 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1955608601) 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 in 23 ways as a sum of consecutive naturals, for example, 24825 + ... + 67286.

It is an arithmetic number, because the mean of its divisors is an integer number (134913376).

Almost surely, 2^1955608641 is an apocalyptic number.

It is an amenable number.

1955608641 is a deficient number, since it is larger than the sum of its proper divisors (1282312383).

1955608641 is a wasteful number, since it uses less digits than its factorization.

1955608641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92461 (or 92458 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 45.

The square root of 1955608641 is about 44222.2640872219. The cubic root of 1955608641 is about 1250.5296189846.

The spelling of 1955608641 in words is "one billion, nine hundred fifty-five million, six hundred eight thousand, six hundred forty-one".