5665401557 has 16 divisors (see below), whose sum is σ = 5936353920. Its totient is φ = 5400937152.

The previous prime is 5665401529. The next prime is 5665401563. The reversal of 5665401557 is 7551045665.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5665401557 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 (5665401527) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1926194 + ... + 1929132.

It is an arithmetic number, because the mean of its divisors is an integer number (371022120).

Almost surely, 2^5665401557 is an apocalyptic number.

It is an amenable number.

5665401557 is a deficient number, since it is larger than the sum of its proper divisors (270952363).

5665401557 is a wasteful number, since it uses less digits than its factorization.

5665401557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4012.

The product of its (nonzero) digits is 630000, while the sum is 44.

The square root of 5665401557 is about 75268.8618022088. The cubic root of 5665401557 is about 1782.6943957283.

The spelling of 5665401557 in words is "five billion, six hundred sixty-five million, four hundred one thousand, five hundred fifty-seven".