1077665690 has 32 divisors (see below), whose sum is σ = 2052677376. Its totient is φ = 406510720.

The previous prime is 1077665681. The next prime is 1077665753. The reversal of 1077665690 is 965667701.

It is a happy number.

It is a super-2 number, since 2×1077665690² = 2322726678806352200, which contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 16667 + ... + 49326.

It is an arithmetic number, because the mean of its divisors is an integer number (64146168).

Almost surely, 2^1077665690 is an apocalyptic number.

1077665690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1077665690 is a deficient number, since it is larger than the sum of its proper divisors (975011686).

1077665690 is a wasteful number, since it uses less digits than its factorization.

1077665690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66094.

The product of its (nonzero) digits is 476280, while the sum is 47.

The square root of 1077665690 is about 32827.8188431702. The cubic root of 1077665690 is about 1025.2458470370.

The spelling of 1077665690 in words is "one billion, seventy-seven million, six hundred sixty-five thousand, six hundred ninety".