1071663516 has 108 divisors (see below), whose sum is σ = 3437736120. Its totient is φ = 278349120.

The previous prime is 1071663503. The next prime is 1071663553. The reversal of 1071663516 is 6153661701.

1071663516 is a `hidden beast` number, since 1 + 0 + 7 + 1 + 6 + 635 + 16 = 666.

It is a super-2 number, since 2×1071663516² = 2296925383050964512, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 8211 + ... + 47018.

It is an arithmetic number, because the mean of its divisors is an integer number (31830890).

Almost surely, 2^1071663516 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1071663516, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1718868060).

1071663516 is an abundant number, since it is smaller than the sum of its proper divisors (2366072604).

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

1071663516 is a wasteful number, since it uses less digits than its factorization.

1071663516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55264 (or 55252 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 1071663516 is about 32736.2721762879. The cubic root of 1071663516 is about 1023.3388969578.

The spelling of 1071663516 in words is "one billion, seventy-one million, six hundred sixty-three thousand, five hundred sixteen".