537145166731565 has 8 divisors (see below), whose sum is σ = 736656228660480. Its totient is φ = 368328114330192.

The previous prime is 537145166731561. The next prime is 537145166731571. The reversal of 537145166731565 is 565137661541735.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 537145166731565 - 2² = 537145166731561 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (537145166731561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7673502381845 + ... + 7673502381914.

It is an arithmetic number, because the mean of its divisors is an integer number (92082028582560).

Almost surely, 2^{537145166731565} is an apocalyptic number.

It is an amenable number.

537145166731565 is a deficient number, since it is larger than the sum of its proper divisors (199511061928915).

537145166731565 is a wasteful number, since it uses less digits than its factorization.

537145166731565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15347004763771.

The product of its digits is 238140000, while the sum is 65.

The spelling of 537145166731565 in words is "five hundred thirty-seven trillion, one hundred forty-five billion, one hundred sixty-six million, seven hundred thirty-one thousand, five hundred sixty-five".