1600557061 has 4 divisors (see below), whose sum is σ = 1612072000. Its totient is φ = 1589042124.

The previous prime is 1600557059. The next prime is 1600557071. The reversal of 1600557061 is 1607550061.

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 1600557061 - 2¹ = 1600557059 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 (1600557071) 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, 5757261 + ... + 5757538.

It is an arithmetic number, because the mean of its divisors is an integer number (403018000).

Almost surely, 2^1600557061 is an apocalyptic number.

It is an amenable number.

1600557061 is a deficient number, since it is larger than the sum of its proper divisors (11514939).

1600557061 is a wasteful number, since it uses less digits than its factorization.

1600557061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11514938.

The product of its (nonzero) digits is 6300, while the sum is 31.

The square root of 1600557061 is about 40006.9626565177. The cubic root of 1600557061 is about 1169.7428175556.

The spelling of 1600557061 in words is "one billion, six hundred million, five hundred fifty-seven thousand, sixty-one".