1377165540 has 24 divisors (see below), whose sum is σ = 3856063680. Its totient is φ = 367244128.

The previous prime is 1377165539. The next prime is 1377165547. The reversal of 1377165540 is 455617731.

It is not an unprimeable number, because it can be changed into a prime (1377165547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11476320 + ... + 11476439.

It is an arithmetic number, because the mean of its divisors is an integer number (160669320).

Almost surely, 2^1377165540 is an apocalyptic number.

1377165540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1377165540 is an abundant number, since it is smaller than the sum of its proper divisors (2478898140).

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

1377165540 is a wasteful number, since it uses less digits than its factorization.

1377165540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22952771 (or 22952769 counting only the distinct ones).

The product of its (nonzero) digits is 88200, while the sum is 39.

The square root of 1377165540 is about 37110.1810828242. The cubic root of 1377165540 is about 1112.5735109444.

The spelling of 1377165540 in words is "one billion, three hundred seventy-seven million, one hundred sixty-five thousand, five hundred forty".