1955699838057 has 16 divisors (see below), whose sum is σ = 3040932694400. Its totient is φ = 1117542764016.

The previous prime is 1955699838017. The next prime is 1955699838067. The reversal of 1955699838057 is 7508389965591.

It is not a de Polignac number, because 1955699838057 - 2¹¹ = 1955699836009 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1955699838057.

It is not an unprimeable number, because it can be changed into a prime (1955699838017) 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, 950290438 + ... + 950292495.

It is an arithmetic number, because the mean of its divisors is an integer number (190058293400).

Almost surely, 2^{1955699838057} is an apocalyptic number.

It is an amenable number.

1955699838057 is a deficient number, since it is larger than the sum of its proper divisors (1085232856343).

1955699838057 is an equidigital number, since it uses as much as digits as its factorization.

1955699838057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1900582957 (or 1900582943 counting only the distinct ones).

The product of its (nonzero) digits is 734832000, while the sum is 75.

The spelling of 1955699838057 in words is "one trillion, nine hundred fifty-five billion, six hundred ninety-nine million, eight hundred thirty-eight thousand, fifty-seven".