536151661 has 4 divisors (see below), whose sum is σ = 567690012. Its totient is φ = 504613312.

The previous prime is 536151659. The next prime is 536151683. The reversal of 536151661 is 166151635.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 334341225 + 201810436 = 18285^2 + 14206^2 .

It is not a de Polignac number, because 536151661 - 2¹ = 536151659 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 (536151611) 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, 15769150 + ... + 15769183.

It is an arithmetic number, because the mean of its divisors is an integer number (141922503).

Almost surely, 2^536151661 is an apocalyptic number.

It is an amenable number.

536151661 is a deficient number, since it is larger than the sum of its proper divisors (31538351).

536151661 is a wasteful number, since it uses less digits than its factorization.

536151661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31538350.

The product of its digits is 16200, while the sum is 34.

The square root of 536151661 is about 23154.9489526537. The cubic root of 536151661 is about 812.3862270989.

The spelling of 536151661 in words is "five hundred thirty-six million, one hundred fifty-one thousand, six hundred sixty-one".