20035353672 has 128 divisors (see below), whose sum is σ = 59479401600. Its totient is φ = 6226735104.

The previous prime is 20035353647. The next prime is 20035353703. The reversal of 20035353672 is 27635353002.

20035353672 is a `hidden beast` number, since 2 + 0 + 0 + 3 + 53 + 536 + 72 = 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 31 ways as a sum of consecutive naturals, for example, 367408 + ... + 418400.

It is an arithmetic number, because the mean of its divisors is an integer number (464682825).

Almost surely, 2^20035353672 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 20035353672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29739700800).

20035353672 is an abundant number, since it is smaller than the sum of its proper divisors (39444047928).

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

20035353672 is a wasteful number, since it uses less digits than its factorization.

20035353672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51132 (or 51122 counting only the distinct ones).

The product of its (nonzero) digits is 113400, while the sum is 36.

The spelling of 20035353672 in words is "twenty billion, thirty-five million, three hundred fifty-three thousand, six hundred seventy-two".