1380166137587 has 4 divisors (see below), whose sum is σ = 1380169567296. Its totient is φ = 1380162707880.

The previous prime is 1380166137569. The next prime is 1380166137593. The reversal of 1380166137587 is 7857316610831.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1380166137587 - 2²² = 1380161943283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1380166137557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1016408 + ... + 1947669.

It is an arithmetic number, because the mean of its divisors is an integer number (345042391824).

Almost surely, 2^{1380166137587} is an apocalyptic number.

1380166137587 is a deficient number, since it is larger than the sum of its proper divisors (3429709).

1380166137587 is an equidigital number, since it uses as much as digits as its factorization.

1380166137587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3429708.

The product of its (nonzero) digits is 5080320, while the sum is 56.

The spelling of 1380166137587 in words is "one trillion, three hundred eighty billion, one hundred sixty-six million, one hundred thirty-seven thousand, five hundred eighty-seven".