34020450661 has 4 divisors (see below), whose sum is σ = 34021179424. Its totient is φ = 34019721900.

The previous prime is 34020450647. The next prime is 34020450679. The reversal of 34020450661 is 16605402043.

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 34020450661 - 2⁷ = 34020450533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34020450631) 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, 289185 + ... + 389446.

It is an arithmetic number, because the mean of its divisors is an integer number (8505294856).

Almost surely, 2^34020450661 is an apocalyptic number.

It is an amenable number.

34020450661 is a deficient number, since it is larger than the sum of its proper divisors (728763).

34020450661 is an equidigital number, since it uses as much as digits as its factorization.

34020450661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 728762.

The product of its (nonzero) digits is 17280, while the sum is 31.

The spelling of 34020450661 in words is "thirty-four billion, twenty million, four hundred fifty thousand, six hundred sixty-one".