1377640136168 has 16 divisors (see below), whose sum is σ = 2583773250660. Its totient is φ = 688633936000.

The previous prime is 1377640136063. The next prime is 1377640136219. The reversal of 1377640136168 is 8616310467731.

It can be written as a sum of positive squares in 2 ways, for example, as 1330751430724 + 46888705444 = 1153582^2 + 216538^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23235053 + ... + 23294268.

Almost surely, 2^{1377640136168} is an apocalyptic number.

It is an amenable number.

1377640136168 is a deficient number, since it is larger than the sum of its proper divisors (1206133114492).

1377640136168 is a wasteful number, since it uses less digits than its factorization.

1377640136168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46533028 (or 46533024 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 53.

The spelling of 1377640136168 in words is "one trillion, three hundred seventy-seven billion, six hundred forty million, one hundred thirty-six thousand, one hundred sixty-eight".