1613165500 has 48 divisors (see below), whose sum is σ = 3609129888. Its totient is φ = 629520000.

The previous prime is 1613165497. The next prime is 1613165501. The reversal of 1613165500 is 55613161.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1613165501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18846 + ... + 59845.

It is an arithmetic number, because the mean of its divisors is an integer number (75190206).

Almost surely, 2^1613165500 is an apocalyptic number.

1613165500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1613165500 is an abundant number, since it is smaller than the sum of its proper divisors (1995964388).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1613165500 is a wasteful number, since it uses less digits than its factorization.

1613165500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78751 (or 78739 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 28.

The square root of 1613165500 is about 40164.2315997705. The cubic root of 1613165500 is about 1172.8063492721.

Adding to 1613165500 its reverse (55613161), we get a palindrome (1668778661).

The spelling of 1613165500 in words is "one billion, six hundred thirteen million, one hundred sixty-five thousand, five hundred".