1377330151681 has 8 divisors (see below), whose sum is σ = 1524967984224. Its totient is φ = 1233429985920.

The previous prime is 1377330151661. The next prime is 1377330151739. The reversal of 1377330151681 is 1861510337731.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1377330151681 - 2⁵ = 1377330151649 is a prime.

It is a super-2 number, since 2×1377330151681² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1377330151661) 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, 934415920 + ... + 934417393.

It is an arithmetic number, because the mean of its divisors is an integer number (190620998028).

Almost surely, 2^{1377330151681} is an apocalyptic number.

1377330151681 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1377330151681 is a deficient number, since it is larger than the sum of its proper divisors (147637832543).

1377330151681 is a wasteful number, since it uses less digits than its factorization.

1377330151681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1868833391.

The product of its (nonzero) digits is 317520, while the sum is 46.

The spelling of 1377330151681 in words is "one trillion, three hundred seventy-seven billion, three hundred thirty million, one hundred fifty-one thousand, six hundred eighty-one".