622166461 has 4 divisors (see below), whose sum is σ = 711047392. Its totient is φ = 533285532.

The previous prime is 622166443. The next prime is 622166471. The reversal of 622166461 is 164661226.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 622166461 - 2²⁷ = 487948733 is a prime.

It is a super-2 number, since 2×622166461² = 774182210386529042, 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 (622166411) 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, 44440455 + ... + 44440468.

It is an arithmetic number, because the mean of its divisors is an integer number (177761848).

Almost surely, 2^622166461 is an apocalyptic number.

It is an amenable number.

622166461 is a deficient number, since it is larger than the sum of its proper divisors (88880931).

622166461 is an equidigital number, since it uses as much as digits as its factorization.

622166461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88880930.

The product of its digits is 20736, while the sum is 34.

The square root of 622166461 is about 24943.2648424379. The cubic root of 622166461 is about 853.6939401848.

The spelling of 622166461 in words is "six hundred twenty-two million, one hundred sixty-six thousand, four hundred sixty-one".