1611318090 has 16 divisors (see below), whose sum is σ = 3867163488. Its totient is φ = 429684816.

The previous prime is 1611318073. The next prime is 1611318109. The reversal of 1611318090 is 908131161.

It is a super-2 number, since 2×1611318090² = 5192691974322496200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 53710603 = 1611318090 / (1 + 6 + 1 + 1 + 3 + 1 + 8 + 0 + 9 + 0).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26855272 + ... + 26855331.

It is an arithmetic number, because the mean of its divisors is an integer number (241697718).

Almost surely, 2^1611318090 is an apocalyptic number.

1611318090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1611318090 is an abundant number, since it is smaller than the sum of its proper divisors (2255845398).

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

1611318090 is a wasteful number, since it uses less digits than its factorization.

1611318090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53710613.

The product of its (nonzero) digits is 1296, while the sum is 30.

The square root of 1611318090 is about 40141.2268123434. The cubic root of 1611318090 is about 1172.3584758633.

The spelling of 1611318090 in words is "one billion, six hundred eleven million, three hundred eighteen thousand, ninety".