1920057166788 has 24 divisors (see below), whose sum is σ = 4482607284960. Its totient is φ = 639665641920.

The previous prime is 1920057166733. The next prime is 1920057166799. The reversal of 1920057166788 is 8876617500291.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44154073 + ... + 44197536.

It is an arithmetic number, because the mean of its divisors is an integer number (186775303540).

Almost surely, 2^{1920057166788} is an apocalyptic number.

It is an amenable number.

1920057166788 is an abundant number, since it is smaller than the sum of its proper divisors (2562550118172).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1920057166788 is a wasteful number, since it uses less digits than its factorization.

1920057166788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88353427 (or 88353425 counting only the distinct ones).

The product of its (nonzero) digits is 10160640, while the sum is 60.

The spelling of 1920057166788 in words is "one trillion, nine hundred twenty billion, fifty-seven million, one hundred sixty-six thousand, seven hundred eighty-eight".