1655370013 has 4 divisors (see below), whose sum is σ = 1805858208. Its totient is φ = 1504881820.

The previous prime is 1655369987. The next prime is 1655370037. The reversal of 1655370013 is 3100735561.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1655370013 - 2⁵ = 1655369981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1655370313) 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, 75244081 + ... + 75244102.

It is an arithmetic number, because the mean of its divisors is an integer number (451464552).

Almost surely, 2^1655370013 is an apocalyptic number.

It is an amenable number.

1655370013 is a deficient number, since it is larger than the sum of its proper divisors (150488195).

1655370013 is a wasteful number, since it uses less digits than its factorization.

1655370013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150488194.

The product of its (nonzero) digits is 9450, while the sum is 31.

The square root of 1655370013 is about 40686.2386194644. The cubic root of 1655370013 is about 1182.9462936742.

The spelling of 1655370013 in words is "one billion, six hundred fifty-five million, three hundred seventy thousand, thirteen".