1077655663 has 4 divisors (see below), whose sum is σ = 1231606480. Its totient is φ = 923704848.

The previous prime is 1077655651. The next prime is 1077655727. The reversal of 1077655663 is 3665567701.

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 1077655663 - 2¹³ = 1077647471 is a prime.

It is a super-2 number, since 2×1077655663² = 2322683455991939138, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1077655613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76975398 + ... + 76975411.

It is an arithmetic number, because the mean of its divisors is an integer number (307901620).

Almost surely, 2^1077655663 is an apocalyptic number.

1077655663 is a deficient number, since it is larger than the sum of its proper divisors (153950817).

1077655663 is an equidigital number, since it uses as much as digits as its factorization.

1077655663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153950816.

The product of its (nonzero) digits is 793800, while the sum is 46.

The square root of 1077655663 is about 32827.6661217334. Note that the first 3 decimals coincide. The cubic root of 1077655663 is about 1025.2426672717.

The spelling of 1077655663 in words is "one billion, seventy-seven million, six hundred fifty-five thousand, six hundred sixty-three".