15610003601 has 4 divisors (see below), whose sum is σ = 15611322804. Its totient is φ = 15608684400.

The previous prime is 15610003597. The next prime is 15610003613. The reversal of 15610003601 is 10630001651.

It is a happy number.

It is a Cunningham number, because it is equal to 124940²+1.

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 4085766400 + 11524237201 = 63920^2 + 107351^2 .

It is a cyclic number.

It is not a de Polignac number, because 15610003601 - 2² = 15610003597 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15610003501) 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, 641690 + ... + 665571.

It is an arithmetic number, because the mean of its divisors is an integer number (3902830701).

Almost surely, 2^15610003601 is an apocalyptic number.

It is an amenable number.

15610003601 is a deficient number, since it is larger than the sum of its proper divisors (1319203).

15610003601 is a wasteful number, since it uses less digits than its factorization.

15610003601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1319202.

The product of its (nonzero) digits is 540, while the sum is 23.

The spelling of 15610003601 in words is "fifteen billion, six hundred ten million, three thousand, six hundred one".