1375776656 has 40 divisors (see below), whose sum is σ = 2718451008. Its totient is φ = 674352000.

The previous prime is 1375776653. The next prime is 1375776739. The reversal of 1375776656 is 6566775731.

It is a super-2 number, since 2×1375776656² = 3785522814389084672, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1375776598 and 1375776607.

It is not an unprimeable number, because it can be changed into a prime (1375776653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 202271 + ... + 208961.

Almost surely, 2^1375776656 is an apocalyptic number.

1375776656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1375776656 is a deficient number, since it is larger than the sum of its proper divisors (1342674352).

1375776656 is a wasteful number, since it uses less digits than its factorization.

1375776656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6951 (or 6945 counting only the distinct ones).

The product of its digits is 5556600, while the sum is 53.

The square root of 1375776656 is about 37091.4633844501. The cubic root of 1375776656 is about 1112.1993716329.

The spelling of 1375776656 in words is "one billion, three hundred seventy-five million, seven hundred seventy-six thousand, six hundred fifty-six".