611668395 has 64 divisors (see below), whose sum is σ = 1178634240. Its totient is φ = 299182464.

The previous prime is 611668391. The next prime is 611668397. The reversal of 611668395 is 593866116.

611668395 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 611668395 - 2² = 611668391 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 611668395.

It is not an unprimeable number, because it can be changed into a prime (611668391) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 292042 + ... + 294128.

It is an arithmetic number, because the mean of its divisors is an integer number (18416160).

Almost surely, 2^611668395 is an apocalyptic number.

611668395 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

611668395 is a deficient number, since it is larger than the sum of its proper divisors (566965845).

611668395 is a wasteful number, since it uses less digits than its factorization.

611668395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2281 (or 2275 counting only the distinct ones).

The product of its digits is 233280, while the sum is 45.

The square root of 611668395 is about 24731.9306767587. The cubic root of 611668395 is about 848.8651036160.

The spelling of 611668395 in words is "six hundred eleven million, six hundred sixty-eight thousand, three hundred ninety-five".