1377161354240 has 440 divisors, whose sum is σ = 3987866161440. Its totient is φ = 455769882624.

The previous prime is 1377161354213. The next prime is 1377161354299. The reversal of 1377161354240 is 424531617731.

It is a super-2 number, since 2×1377161354240² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1377161354191 and 1377161354200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 356498549 + ... + 356502411.

Almost surely, 2^{1377161354240} is an apocalyptic number.

1377161354240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1377161354240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1993933080720).

1377161354240 is an abundant number, since it is smaller than the sum of its proper divisors (2610704807200).

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

1377161354240 is an frugal number, since it uses more digits than its factorization.

1377161354240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3945 (or 3906 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 44.

The spelling of 1377161354240 in words is "one trillion, three hundred seventy-seven billion, one hundred sixty-one million, three hundred fifty-four thousand, two hundred forty".