1071612000 has 432 divisors, whose sum is σ = 4079248992. Its totient is φ = 266342400.

The previous prime is 1071611977. The next prime is 1071612001. The reversal of 1071612000 is 2161701.

It is a super-2 number, since 2×1071612000² = 2296704557088000000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1071612001) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 10403949 + ... + 10404051.

It is an arithmetic number, because the mean of its divisors is an integer number (9442706).

Almost surely, 2^1071612000 is an apocalyptic number.

1071612000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1071612000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2039624496).

1071612000 is an abundant number, since it is smaller than the sum of its proper divisors (3007636992).

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

1071612000 is a wasteful number, since it uses less digits than its factorization.

1071612000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168 (or 130 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 18.

The square root of 1071612000 is about 32735.4853331977. The cubic root of 1071612000 is about 1023.3224990335.

Adding to 1071612000 its reverse (2161701), we get a palindrome (1073773701).

The spelling of 1071612000 in words is "one billion, seventy-one million, six hundred twelve thousand".