572341661 has 4 divisors (see below), whose sum is σ = 572668800. Its totient is φ = 572014524.

The previous prime is 572341621. The next prime is 572341663. The reversal of 572341661 is 166143275.

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 572341661 - 2⁶ = 572341597 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 (572341663) 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, 160931 + ... + 164448.

It is an arithmetic number, because the mean of its divisors is an integer number (143167200).

Almost surely, 2^572341661 is an apocalyptic number.

It is an amenable number.

572341661 is a deficient number, since it is larger than the sum of its proper divisors (327139).

572341661 is a wasteful number, since it uses less digits than its factorization.

572341661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327138.

The product of its digits is 30240, while the sum is 35.

The square root of 572341661 is about 23923.6632019430. The cubic root of 572341661 is about 830.2682932923.

The spelling of 572341661 in words is "five hundred seventy-two million, three hundred forty-one thousand, six hundred sixty-one".