1516041601 has 8 divisors (see below), whose sum is σ = 1547637800. Its totient is φ = 1484663040.

The previous prime is 1516041587. The next prime is 1516041607. The reversal of 1516041601 is 1061406151.

It can be written as a sum of positive squares in 4 ways, for example, as 514382400 + 1001659201 = 22680^2 + 31649^2 .

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 1516041601 - 2⁷ = 1516041473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1516041607) 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, 40296 + ... + 68233.

It is an arithmetic number, because the mean of its divisors is an integer number (193454725).

Almost surely, 2^1516041601 is an apocalyptic number.

It is an amenable number.

1516041601 is a deficient number, since it is larger than the sum of its proper divisors (31596199).

1516041601 is a wasteful number, since it uses less digits than its factorization.

1516041601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108819.

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 1516041601 is about 38936.3788891571. The cubic root of 1516041601 is about 1148.7804591552.

Adding to 1516041601 its reverse (1061406151), we get a palindrome (2577447752).

The spelling of 1516041601 in words is "one billion, five hundred sixteen million, forty-one thousand, six hundred one".