1611012011 has 8 divisors (see below), whose sum is σ = 1852884960. Its totient is φ = 1372071168.

The previous prime is 1611011951. The next prime is 1611012017. The reversal of 1611012011 is 1102101161.

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 1611012011 - 2⁶ = 1611011947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1611012017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 731846 + ... + 734043.

It is an arithmetic number, because the mean of its divisors is an integer number (231610620).

Almost surely, 2^1611012011 is an apocalyptic number.

1611012011 is a deficient number, since it is larger than the sum of its proper divisors (241872949).

1611012011 is a wasteful number, since it uses less digits than its factorization.

1611012011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1466053.

The product of its (nonzero) digits is 12, while the sum is 14.

The square root of 1611012011 is about 40137.4141045484. The cubic root of 1611012011 is about 1172.2842391177.

Adding to 1611012011 its reverse (1102101161), we get a palindrome (2713113172).

The spelling of 1611012011 in words is "one billion, six hundred eleven million, twelve thousand, eleven".