1377166164 has 24 divisors (see below), whose sum is σ = 3505514208. Its totient is φ = 417323040.

The previous prime is 1377166139. The next prime is 1377166169. The reversal of 1377166164 is 4616617731.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1377166169) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5216407 + ... + 5216670.

It is an arithmetic number, because the mean of its divisors is an integer number (146063092).

Almost surely, 2^1377166164 is an apocalyptic number.

It is an amenable number.

1377166164 is an abundant number, since it is smaller than the sum of its proper divisors (2128348044).

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

1377166164 is a wasteful number, since it uses less digits than its factorization.

1377166164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10433095 (or 10433093 counting only the distinct ones).

The product of its digits is 127008, while the sum is 42.

The square root of 1377166164 is about 37110.1894902195. The cubic root of 1377166164 is about 1112.5736789817.

It can be divided in two parts, 13 and 77166164, that added together give a palindrome (77166177).

The spelling of 1377166164 in words is "one billion, three hundred seventy-seven million, one hundred sixty-six thousand, one hundred sixty-four".