2061663552 has 336 divisors, whose sum is σ = 6875028160. Its totient is φ = 585252864.

The previous prime is 2061663547. The next prime is 2061663577. The reversal of 2061663552 is 2553661602.

It is a happy number.

2061663552 is a `hidden beast` number, since 2 + 0 + 6 + 16 + 635 + 5 + 2 = 666.

2061663552 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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 47 ways as a sum of consecutive naturals, for example, 6117528 + ... + 6117864.

Almost surely, 2^2061663552 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 2061663552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3437514080).

2061663552 is an abundant number, since it is smaller than the sum of its proper divisors (4813364608).

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

2061663552 is a wasteful number, since it uses less digits than its factorization.

2061663552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430 (or 417 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The square root of 2061663552 is about 45405.5453882012. The cubic root of 2061663552 is about 1272.7387425856.

The spelling of 2061663552 in words is "two billion, sixty-one million, six hundred sixty-three thousand, five hundred fifty-two".