1127381551065 has 48 divisors (see below), whose sum is σ = 2436315463296. Its totient is φ = 468522201600.

The previous prime is 1127381551063. The next prime is 1127381551073. The reversal of 1127381551065 is 5601551837211.

1127381551065 is a `hidden beast` number, since 1 + 1 + 2 + 7 + 38 + 1 + 551 + 0 + 65 = 666.

It is not a de Polignac number, because 1127381551065 - 2¹ = 1127381551063 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 1127381551065.

It is not an unprimeable number, because it can be changed into a prime (1127381551061) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 162677856 + ... + 162684785.

It is an arithmetic number, because the mean of its divisors is an integer number (50756572152).

Almost surely, 2^{1127381551065} is an apocalyptic number.

1127381551065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1127381551065 is an abundant number, since it is smaller than the sum of its proper divisors (1308933912231).

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

1127381551065 is a wasteful number, since it uses less digits than its factorization.

1127381551065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325362670 (or 325362667 counting only the distinct ones).

The product of its (nonzero) digits is 252000, while the sum is 45.

The spelling of 1127381551065 in words is "one trillion, one hundred twenty-seven billion, three hundred eighty-one million, five hundred fifty-one thousand, sixty-five".