1020451101696 has 704 divisors, whose sum is σ = 3440060467200. Its totient is φ = 296565276672.

The previous prime is 1020451101673. The next prime is 1020451101727. The reversal of 1020451101696 is 6961011540201.

1020451101696 is a `hidden beast` number, since 10 + 2 + 0 + 451 + 101 + 6 + 96 = 666.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1020451101696.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 489893871 + ... + 489895953.

Almost surely, 2^{1020451101696} is an apocalyptic number.

1020451101696 is a gapful number since it is divisible by the number (16) 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 1020451101696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1720030233600).

1020451101696 is an abundant number, since it is smaller than the sum of its proper divisors (2419609365504).

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

1020451101696 is a wasteful number, since it uses less digits than its factorization.

1020451101696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2201 (or 2177 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

Adding to 1020451101696 its reverse (6961011540201), we get a palindrome (7981462641897).

The spelling of 1020451101696 in words is "one trillion, twenty billion, four hundred fifty-one million, one hundred one thousand, six hundred ninety-six".