1080401655 has 32 divisors (see below), whose sum is σ = 1898749440. Its totient is φ = 522149760.

The previous prime is 1080401627. The next prime is 1080401681. The reversal of 1080401655 is 5561040801.

It is not a de Polignac number, because 1080401655 - 2⁹ = 1080401143 is a prime.

It is a super-2 number, since 2×1080401655² = 2334535472253478050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 75856 + ... + 88965.

It is an arithmetic number, because the mean of its divisors is an integer number (59335920).

Almost surely, 2^1080401655 is an apocalyptic number.

1080401655 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1080401655 is a deficient number, since it is larger than the sum of its proper divisors (818347785).

1080401655 is a wasteful number, since it uses less digits than its factorization.

1080401655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164871.

The product of its (nonzero) digits is 4800, while the sum is 30.

The square root of 1080401655 is about 32869.4638684600. The cubic root of 1080401655 is about 1026.1127412029.

The spelling of 1080401655 in words is "one billion, eighty million, four hundred one thousand, six hundred fifty-five".