20761039152 has 320 divisors, whose sum is σ = 70758645760. Its totient is φ = 5704909056.

The previous prime is 20761039133. The next prime is 20761039193. The reversal of 20761039152 is 25193016702.

20761039152 is a `hidden beast` number, since 2 + 0 + 7 + 610 + 39 + 1 + 5 + 2 = 666.

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

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, 8710953 + ... + 8713335.

It is an arithmetic number, because the mean of its divisors is an integer number (221120768).

Almost surely, 2^20761039152 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 20761039152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35379322880).

20761039152 is an abundant number, since it is smaller than the sum of its proper divisors (49997606608).

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

20761039152 is a wasteful number, since it uses less digits than its factorization.

20761039152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2517 (or 2505 counting only the distinct ones).

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

The spelling of 20761039152 in words is "twenty billion, seven hundred sixty-one million, thirty-nine thousand, one hundred fifty-two".